UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

   CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number 811-05715
                                                    -------------
            The Gabelli Convertible and Income Securities Fund Inc.
         --------------------------------------------------------------
               (Exact name of registrant as specified in charter)

                              One Corporate Center
                            Rye, New York 10580-1422
         --------------------------------------------------------------
              (Address of principal executive offices) (Zip code)

                                Bruce N. Alpert
                               Gabelli Funds, LLC
                              One Corporate Center
                            Rye, New York 10580-1422
         --------------------------------------------------------------
                    (Name and address of agent for service)

       registrant's telephone number, including area code: 1-800-422-3554
                                                          ---------------

                      Date of fiscal year end: December 31
                                              ------------

                    Date of reporting period: June 30, 2005
                                             --------------

Form N-CSR is to be used by  management  investment  companies  to file reports
with  the  Commission  not  later  than  10  days  after  the  transmission  to
stockholders  of any report that is required to be transmitted to  stockholders
under Rule 30e-1 under the Investment  Company Act of 1940 (17 CFR  270.30e-1).
The  Commission  may  use  the  information  provided  on  Form  N-CSR  in  its
regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the  information  specified by Form N-CSR,
and the  Commission  will make this  information  public.  A registrant  is not
required to respond to the  collection of  information  contained in Form N-CSR
unless the Form  displays a currently  valid  Office of  Management  and Budget
("OMB") control number.  Please direct comments  concerning the accuracy of the
information  collection  burden  estimate and any  suggestions for reducing the
burden to Secretary,  Securities and Exchange Commission, 450 Fifth Street, NW,
Washington, DC 20549-0609.  The OMB has reviewed this collection of information
under the clearance requirements of 44 U.S.C. ss. 3507.



ITEM 1. REPORTS TO STOCKHOLDERS.

The Report to Shareholders is attached herewith.



                                                                  [LOGO OMITTED]

                                                             THE GABELLI
                                                             CONVERTIBLE AND
                                                             INCOME SECURITIES
                                                             FUND INC.


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

                               Semi-Annual Report
                                  June 30, 2005


TO OUR SHAREHOLDERS,
      During the second  quarter of 2005,  the  Gabelli  Convertible  and Income
Securities  Fund's  (the  "Fund")  total  return  rose 1.9% on a net asset value
("NAV")  basis  while the  Standard  & Poor's  ("S&P")  500 Index and the Lipper
Convertible  Securities Fund Average rose 1.4% and 1.1%,  respectively.  For the
six month period  ended June 30,  2005,  the Fund's NAV total return was up 2.0%
versus  declines  of  0.8%  and  2.7%  for  the S&P  500  Index  and the  Lipper
Convertible Securities Fund Average,  respectively. The Fund's market price rose
10.5% and 12.3%  during the second  quarter and the six month  period ended June
30, 2005, respectively. TheFund's market price on June 30, 2005 was $9.93, which
equated to a 22.9% premium to its NAV of $8.08.

      Enclosed are the financial  statements and the investment  portfolio as of
June 30, 2005.

COMPARATIVE RESULTS
--------------------------------------------------------------------------------

                AVERAGE ANNUAL RETURNS THROUGH JUNE 30, 2005 (A)
                ------------------------------------------------


                                                                                                                 Since
                                                             Year to                                            Inception
                                                      Quarter   Date    1 Year  3 Year  5 Year  10 Year  15 Year  (7/3/89)
                                                      -------   ----    ------  ------  ------  -------  -------  ---------
                                                                                          
  GABELLI CONV. & INC. SEC. FUND NAV RETURN (B) .....  1.88%   1.96%    4.58%   5.65%   3.44%   5.91%    7.32%    7.49%
  GABELLI CONV. & INC. SEC. FUND INV. RETURN (C)      10.45   12.34     8.06    7.17   10.15    8.52     N/A(D)   5.29(D)

  S&P 500 Index .....................................  1.37   (0.81)    6.32    8.28   (2.37)   9.94    10.64    11.00
  Lipper Convertible Securities Fund Average ........  1.08   (2.66)    3.30    9.36    1.33    8.48     9.76     9.52

(a)  RETURNS  REPRESENT PAST  PERFORMANCE  AND DO NOT GUARANTEE  FUTURE RESULTS.
     INVESTMENT RETURNS AND THE PRINCIPAL VALUE OF AN INVESTMENT WILL FLUCTUATE.
     WHEN  SHARES ARE SOLD,  THEY MAY BE WORTH MORE OR LESS THAN THEIR  ORIGINAL
     COST. DIVIDENDS ARE CONSIDERED REINVESTED.  PERFORMANCE RETURNS FOR PERIODS
     LESS THAN ONE YEAR ARE NOT ANNUALIZED.  CURRENT PERFORMANCE MAY BE LOWER OR
     HIGHER THAN THE  PERFORMANCE  DATA  PRESENTED.  VISIT  WWW.GABELLI.COM  FOR
     PERFORMANCE  INFORMATION AS OF THE MOST RECENT MONTH END.  INVESTORS SHOULD
     CONSIDER THE INVESTMENT  OBJECTIVES,  RISKS AND CHARGES AND EXPENSES OF THE
     FUND  CAREFULLY  BEFORE  INVESTING.  THE  S&P  500  INDEX  IS AN  UNMANAGED
     INDICATOR OF STOCK MARKET  PERFORMANCE,  WHILE THE LIPPER AVERAGE  REFLECTS
     THE  AVERAGE  PERFORMANCE  OF  OPEN-END  MUTUAL  FUNDS  CLASSIFIED  IN THIS
     PARTICULAR CATEGORY.
(b)  TOTAL RETURNS AND AVERAGE ANNUAL RETURNS REFLECT CHANGES IN NET ASSET VALUE
     ("NAV"),  REINVESTMENT OF  DISTRIBUTIONS AT NAV ON THE EX-DIVIDEND DATE AND
     ADJUSTMENTS FOR RIGHTS OFFERINGS,  AND ARE NET OF EXPENSES. SINCE INCEPTION
     RETURN BASED ON INITIAL NET ASSET VALUE OF $10.00.
(c)  TOTAL RETURNS AND AVERAGE ANNUAL RETURNS  REFLECT CHANGES IN CLOSING MARKET
     VALUES ON THE NEW YORK STOCK EXCHANGE AND  REINVESTMENT  OF  DISTRIBUTIONS.
     SINCE INCEPTION  RETURN BASED ON AN INITIAL  OFFERING PRICE OF $11.25 AS OF
     MARCH 31, 1995. SEE (D).
(d)  THE FUND  CONVERTED  TO  CLOSED-END  STATUS  ON MARCH  31,  1995 AND HAD NO
     OPERATING HISTORY ON THE NEW YORK STOCK EXCHANGE PRIOR TO THAT DATE.
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
We  have  separated  the  portfolio  manager's  commentary  from  the  financial
statements  and  investment  portfolio due to corporate  governance  regulations
stipulated by the  Sarbanes-Oxley  Act of 2002. We have done this to ensure that
the content of the portfolio manager's commentary is unrestricted. The financial
statements and investment  portfolio are mailed separately.  Both the commentary
and the financial  statements,  including the portfolio of investments,  will be
available on our website at www.gabelli.com/funds.
--------------------------------------------------------------------------------



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                    SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)


The  following  table  presents   portfolio  holdings  as  a  percent  of  total
investments:


U.S. Treasury Bills ...............................  19.0%
Energy and Utilities ..............................  11.1%
Automotive: Parts and Accessories .................   7.9%
Communications Equipment ..........................   7.3%
Food and Beverage .................................   5.9%
Business Services .................................   5.4%
Broadcasting ......................................   5.0%
Financial Services ................................   4.8%
Aviation: Parts and Services ......................   4.1%
Aerospace .........................................   4.0%
Health Care .......................................   4.0%
Computer Software and Services ....................   3.7%
Telecommunications ................................   2.6%
Diversified Industrial ............................   2.4%
Transportation ....................................   2.0%
Hotels and Gaming .................................   1.3%
Real Estate .......................................   1.3%
Equipment and Supplies ............................   1.1%
Wireless Communications ...........................   1.1%
Retail ............................................   1.0%
Consumer Products .................................   0.9%
Cable and Satellite ...............................   0.9%
Electronics .......................................   0.8%
Entertainment .....................................   0.7%
Metals and Mining .................................   0.7%
Cable .............................................   0.6%
Automotive ........................................   0.1%
Computer Hardware .................................   0.1%
Manufactured Housing and Recreational Vehicles ....   0.1%
Specialty Chemicals ...............................   0.1%
                                                    ------
                                                    100.0%
                                                    ======

THE GABELLI  CONVERTIBLE  AND INCOME  SECURITIES  FUND INC. (THE "FUND") FILES A
COMPLETE  SCHEDULE OF  PORTFOLIO  HOLDINGS  WITH THE SEC FOR THE FIRST AND THIRD
QUARTERS OF EACH  FISCAL  YEAR ON FORM N-Q,  THE LAST OF WHICH WAS FILED FOR THE
QUARTER  ENDED  MARCH 31,  2005.  SHAREHOLDERS  MAY OBTAIN THIS  INFORMATION  AT
WWW.GABELLI.COM OR BY CALLING THE FUND AT 800-GABELLI (800-422-3554). THE FUND'S
FORM N-Q IS  AVAILABLE  ON THE  SEC'S  WEBSITE  AT  WWW.SEC.GOV  AND MAY ALSO BE
REVIEWED AND COPIED AT THE COMMISSION'S PUBLIC REFERENCE ROOM IN WASHINGTON, DC.
INFORMATION  ON THE  OPERATION OF THE PUBLIC  REFERENCE  ROOM MAY BE OBTAINED BY
CALLING 1-800-SEC-0330.

PROXY VOTING
      The Fund files Form N-PX with its complete  proxy voting record for the 12
months ended June 30th, no later than August 31st of each year. A description of
the Fund's proxy voting  policies and procedures are available  without  charge,
upon request, (i) by calling 800-GABELLI (800-422-3554);  (ii) by writing to the
Gabelli Funds at One Corporate Center, Rye, NY 10580-1422; and (iii) by visiting
the Securities and Exchange Commission's website at www.sec.gov.

SHAREHOLDER MEETING -- MAY 9, 2005 -- FINAL RESULTS

      The Annual  Meeting of  Shareholders  was held on May 9, 2005 at the Hyatt
Regency in Old Greenwich,  Connecticut. At that meeting, common shareholders and
preferred shareholders voting together as a single class elected Anthonie C. van
Ekris and  Salvatore  J. Zizza as Directors  of the Fund.  There were  9,471,667
votes and  9,471,578  votes cast in favor of each  Director and 92,653 votes and
92,783  votes  were  withheld  for each  Director,  respectively.  In  addition,
Preferred shareholders voting as a separate class elected Anthony J. Colavita as
a Director of the Fund.  There were 967,625 votes cast in favor of this Director
and 4,475 votes withheld for this Director.

      Mario J.  Gabelli,  E. Val Cerutti,  Dugald A.  Fletcher,  Karl Otto Pohl,
Anthony R. Pustorino and Werner J. Roeder continue to serve in their  capacities
as Directors of the Fund.

      We thank you for your participation and appreciate your continued support.

                                       2



            THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                             SCHEDULE OF INVESTMENTS
                            JUNE 30, 2005 (UNAUDITED)

   PRINCIPAL                                                  MARKET
     AMOUNT                                   COST            VALUE
   ----------                               --------        --------

             CONVERTIBLE CORPORATE BONDS -- 38.6%
             AEROSPACE -- 3.2%
 $  830,000  GenCorp Inc., Sub. Deb. Cv.,
               5.750%, 04/15/07 .......  $    812,500    $    919,225
  3,692,000  Kaman Corp., Sub. Deb. Cv.,
               6.000%, 03/15/12 .......     3,527,651       3,655,080
                                         ------------    ------------
                                            4,340,151       4,574,305
                                         ------------    ------------
             AUTOMOTIVE: PARTS AND ACCESSORIES -- 6.6%
  3,000,000  Pep Boys -
               Manny, Moe & Jack, Cv.,
               4.250%, 06/01/07 .......     2,985,154       2,910,000
  6,900,000  Standard Motor Products Inc.,
               Sub. Deb. Cv.,
               6.750%, 07/15/09 .......     5,636,962       6,555,000
                                         ------------    ------------
                                            8,622,116       9,465,000
                                         ------------    ------------
             BROADCASTING -- 4.3%
             Sinclair Broadcast Group Inc.,
               Sub. Deb. Cv.,
  5,000,000    6.000%, 09/15/12 .......     4,052,505       4,212,500
  2,200,000    4.875%, 07/15/18 .......     2,092,110       2,007,500
                                         ------------    ------------
                                            6,144,615       6,220,000
                                         ------------    ------------
             BUSINESS SERVICES -- 5.2%
    900,000  BBN Corp., Sub. Deb. Cv.,
               6.000%, 04/01/12+ (a)(c)       882,893               0
  3,000,000  Franklin Resources Inc., Cv.,
               Zero Coupon, 05/11/31 ..     1,852,685       2,193,750
  1,200,000  Navistar Financial Corp.,
               Sub. Deb. Cv.,
               4.750%, 04/01/09 .......     1,133,445       1,185,000
             Trans-Lux Corp.,
               Sub. Deb. Cv.,
  2,600,000    8.250%, 03/01/12 .......     2,512,910       2,613,000
  1,500,000    7.500%, 12/01/06 .......     1,502,484       1,498,125
                                         ------------    ------------
                                            7,884,417       7,489,875
                                         ------------    ------------
             CABLE -- 0.6%
    400,000  Adelphia Communications
               Corp., Sub. Deb. Cv.,
               3.250%, 05/01/21+ (c) ..       127,000          22,000
    800,000  Charter Communications Inc., Cv.,
               4.750%, 06/01/06 .......       616,821         800,000
    100,000  Mediacom Communications
               Corp., Cv.,
               5.250%, 07/01/06 .......       100,000         100,125
                                         ------------    ------------
                                              843,821         922,125
                                         ------------    ------------

   PRINCIPAL                                                  MARKET
     AMOUNT                                   COST            VALUE
   ----------                               --------        --------

             COMMUNICATIONS EQUIPMENT -- 6.7%
$ 2,600,000  Agere Systems Inc.,
               Sub. Deb. Cv.,
               6.500%, 12/15/09 .......  $  2,668,563    $  2,632,500
    600,000  Corning Inc., Deb. Cv.,
               Zero Coupon, 11/08/15 ..       473,133         477,000
  2,000,000  Lucent Technologies Inc.,
               Sub. Deb. Cv.,
               8.000%, 08/01/31 .......     2,076,716       2,065,000
  2,650,000  Nortel Networks Corp., Cv.,
               4.250%, 09/01/08 .......     2,579,487       2,484,375
  2,000,000  TriQuint Semiconductor Inc.,
               Sub. Deb. Cv.,
               4.000%, 03/01/07 .......     1,954,488       1,952,500
                                         ------------    ------------
                                            9,752,387       9,611,375
                                         ------------    ------------
             COMPUTER SOFTWARE AND SERVICES -- 1.7%
  2,500,000  DoubleClick Inc.,
               Sub. Deb. Cv.,
               Zero Coupon, 07/15/23 ..     2,399,399       2,406,250
                                         ------------    ------------
             CONSUMER PRODUCTS -- 0.1%
    100,000  Church & Dwight Co. Inc.,
               Deb. Cv.,
               5.250%, 08/15/33 (b) ...       100,000         132,875
                                         ------------    ------------
             DIVERSIFIED INDUSTRIAL -- 0.7%
    300,000  EDO Corp., Sub. Deb. Cv.,
               5.250%, 04/15/07 .......       305,661         310,500
  1,400,000  Roper Industries Inc., Cv.,
               1.481%, 01/15/34 .......       681,886         729,750
                                         ------------    ------------
                                              987,547       1,040,250
                                         ------------    ------------
             ELECTRONICS -- 0.8%
     10,000  Artesyn Technologies Inc.,
               Sub. Deb. Cv.,
               5.500%, 08/15/10 (b) ...        10,592          12,563
  1,000,000  Oak Industries Inc.,
               Sub. Deb. Cv.,
               4.875%, 03/01/08 .......       873,298       1,075,000
                                         ------------    ------------
                                              883,890       1,087,563
                                         ------------    ------------
             ENERGY AND UTILITIES -- 1.6%
    500,000  Devon Energy Corp., Deb. Cv.,
               4.950%, 08/15/08 .......       499,796         564,375
  1,400,000  Mirant Corp., Deb. Cv.,
               2.500%, 06/15/21+ (c) ..       950,976       1,022,000
    257,000  Moran Energy Inc.,
               Sub. Deb. Cv.,
               8.750%, 01/15/08 .......       184,776         255,715

                 See accompanying notes to financial statements.

                                       3



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                       SCHEDULE OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2005 (UNAUDITED)

   PRINCIPAL                                                  MARKET
     AMOUNT                                   COST            VALUE
   ----------                               --------        --------

             CONVERTIBLE CORPORATE BONDS (CONTINUED)
             ENERGY AND UTILITIES (CONTINUED)
$   400,000  Unisource Energy Corp., Cv.,
               4.500%, 03/01/35 (b). ..  $    404,075    $    407,500
                                         ------------    ------------
                                            2,039,623       2,249,590
                                         ------------    ------------
             EQUIPMENT AND SUPPLIES -- 1.0%
  1,414,000  Robbins & Myers Inc.,
               Sub. Deb. Cv.,
               8.000%, 01/31/08 .......     1,430,906       1,456,420
                                         ------------    ------------
             FOOD AND BEVERAGE -- 0.3%
    500,000  Parmalat Capital, Cv.,
               Zero Coupon,
               12/31/05+ (c) ..........       300,730         124,041
    900,000  Parmalat Netherlands BV, Cv.,
               Zero Coupon,
               06/30/21+ (c) ..........       831,156         337,633
                                         ------------    ------------
                                            1,131,886         461,674
                                         ------------    ------------
             HEALTH CARE -- 0.7%
  1,000,000  IVAX Corp., Sub. Deb. Cv.,
               4.500%, 05/15/08 .......       953,370       1,002,500
    150,000  Sabratek Corp., Sub. Deb. Cv.,
               Zero Coupon,
               04/15/06+ (a)(c) .......        84,763               0
                                         ------------    ------------
                                            1,038,133       1,002,500
                                         ------------    ------------
             HOTELS AND GAMING -- 0.3%
    200,000  Hilton Group Finance
               Jersey Ltd., Cv.,
               3.375%, 10/02/10 .......       423,539         420,016
     10,000  Wynn Resorts Ltd.,
               Sub. Deb. Cv.,
               6.000%, 07/15/15 (b) ...        10,202          21,775
                                         ------------    ------------
                                              433,741         441,791
                                         ------------    ------------
             MANUFACTURED HOUSING AND RECREATIONAL VEHICLES -- 0.1%
    100,000  Fleetwood Enterprises Inc., Cv.,
               5.000%, 12/15/23 (b) ...       100,000         114,250
                                         ------------    ------------
             METALS AND MINING -- 0.7%
  1,000,000  Inco Ltd., Cv.,
               Zero Coupon, 03/29/21 ..     1,004,428       1,010,000
                                         ------------    ------------
             REAL ESTATE -- 1.3%
             Palm Harbor Homes Inc., Cv.,
    450,000    3.250%, 05/15/24 .......       388,591         405,562
  1,550,000    3.250%, 05/15/24 (b) ...     1,532,171       1,396,938
                                         ------------    ------------
                                            1,920,762       1,802,500
                                         ------------    ------------

   PRINCIPAL                                                  MARKET
     AMOUNT                                   COST            VALUE
   ----------                               --------        --------

            RETAIL -- 0.0%
  $  60,000  Costco Wholesale Corp.,
               Sub. Deb. Cv.,
               Zero Coupon, 08/19/17 ..  $     46,758    $     61,425
                                         ------------    ------------
             TELECOMMUNICATIONS -- 0.8%
     80,000  AMNEX Inc., Sub. Deb. Cv.,
               Zero Coupon,
               09/25/49+ (a)(b)(c)(d)          71,772               0
     50,000  Commonwealth Telephone
               Enterprises Inc., Cv.,
               3.250%, 07/15/23 (b) ...        49,653          54,250
  1,000,000  Rogers Communications Inc.,
               Deb. Cv.,
               2.000%, 11/26/05 .......       982,985       1,128,750
                                         ------------    ------------
                                            1,104,410       1,183,000
                                         ------------    ------------
             TRANSPORTATION -- 0.8%
             GATX Corp., Cv.,
    500,000    7.500%, 02/01/07 (b) ...       500,000         583,125
    500,000    7.500%, 02/01/07 .......       566,239         583,125
                                          -----------      ----------
                                            1,066,239       1,166,250
                                         ------------    ------------
             WIRELESS COMMUNICATIONS -- 1.1%
  1,500,000  Nextel Communications Inc., Cv.,
               5.250%, 01/15/10 .......     1,125,019       1,513,125
                                         ------------    ------------
             TOTAL CONVERTIBLE
               CORPORATE BONDS ........    54,400,248      55,412,143
                                         ------------    ------------

    SHARES
    ------

             CONVERTIBLE PREFERRED STOCKS -- 9.3%
             AEROSPACE -- 0.7%
      8,000  Northrop Grumman Corp.,
               7.000% Cv. Pfd., Ser. B        932,160       1,000,000
                                         ------------    ------------
             AUTOMOTIVE -- 0.1%
      2,000  Ford Motor Co. Capital Trust II,
               6.500% Cv. Pfd. ........        92,705          80,660
      5,000  General Motors Corp.,
               4.500% Cv. Pfd., Ser. A        125,000         121,600
                                         ------------    ------------
                                              217,705         202,260
                                         ------------    ------------
             AVIATION: PARTS AND SERVICES -- 4.1%
     49,000  Coltec Capital Trust,
               5.250% Cv. Pfd. ........     2,032,375       2,437,750
     35,000  Sequa Corp.,
               $5.00 Cv. Pfd. .........     2,690,370       3,430,000
                                         ------------    ------------
                                            4,722,745       5,867,750
                                         ------------    ------------

                 See accompanying notes to financial statements.

                                       4



            THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                       SCHEDULE OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2005 (UNAUDITED)

                                                              MARKET
     SHARES                                   COST            VALUE
   ----------                               --------        --------

             CONVERTIBLE PREFERRED STOCKS (CONTINUED)
             BROADCASTING -- 0.7%
        100  Gray Television Inc.,
               8.000% Cv. Pfd.,
               Ser. C (a)(b)(d) .......  $  1,000,000    $  1,020,000
                                         ------------    ------------
             BUSINESS SERVICES -- 0.2%
     15,738  Interep National Radio Sales Inc.,
               4.000% Cv. Pfd.,
               Ser. A+ (a)(b)(d) ......     1,514,203         350,202
     20,000  Key3Media Group Inc.,
               5.500% Cv. Pfd.,
               Ser. B+ (a) ............       500,000             117
                                         ------------    ------------
                                            2,014,203         350,319
                                         ------------    ------------
             COMMUNICATIONS EQUIPMENT -- 0.6%
        800  Lucent Technologies
               Capital Trust I,
               7.750% Cv. Pfd. ........       556,750         783,700
                                         ------------    ------------
             DIVERSIFIED INDUSTRIAL -- 0.1%
             WHX Corp.,
     54,000    $3.75 Cv. Pfd., Ser. B+        270,123          89,100
     28,000    6.500% Cv. Pfd., Ser. A+       216,762          46,200
                                          -----------      ----------
                                              486,885         135,300
                                         ------------    ------------
             ENERGY AND UTILITIES -- 0.8%
      6,000  AES Trust III,
               6.750% Cv. Pfd. ........       229,530         289,800
        500  El Paso Corp.,
               4.990% Cv. Pfd.+ (b) ...       479,193         531,034
        300  El Paso Corp. Capital Trust I,
               4.750% Cv. Pfd., Ser. C         11,460          11,415
      4,000  FPL Group Inc.,
               8.000% Cv. Pfd., Ser. B        247,419         258,440
                                         ------------    ------------
                                              967,602       1,090,689
                                         ------------    ------------
             ENTERTAINMENT -- 0.7%
      2,000  Metromedia International
               Group Inc.,
               7.250% Cv. Pfd.+ .......        26,611          58,000
     45,000  Six Flags Inc.,
               7.250% Cv. Pfd., Ser. B        851,255         915,300
                                         ------------    ------------
                                              877,866         973,300
                                         ------------    ------------
             HOTELS AND GAMING -- 0.0%
        210  Wyndham International Inc.,
               9.750% Cv. Pfd., Ser. A+         5,987          14,946
                                         ------------    ------------


                                                              MARKET
     SHARES                                   COST            VALUE
   ----------                               --------        --------

             TELECOMMUNICATIONS -- 1.0%
     15,000  Cincinnati Bell Inc.,
               6.750% Cv. Pfd., Ser. B   $    427,662    $    676,500
     15,000  Philippine Long Distance
               Telephone Co.,
               $3.50 Cv. Pfd., Ser. III       627,635         772,500
                                         ------------    ------------
                                            1,055,297       1,449,000
                                         ------------    ------------
             TRANSPORTATION -- 0.3%
      2,700  GATX Corp.,
               $2.50 Cv. Pfd. .........       376,585         462,375
                                         ------------    ------------
             TOTAL CONVERTIBLE
               PREFERRED STOCKS .......    13,213,785      13,349,639
                                         ------------    ------------

             COMMON STOCKS -- 31.5%
             AEROSPACE -- 0.1%
      5,000  Kaman Corp., Cl. A .......        65,268          90,200
                                         ------------    ------------
             AUTOMOTIVE: PARTS AND ACCESSORIES -- 1.3%
     16,000  Dana Corp. ...............       281,988         240,160
     40,000  Genuine Parts Co. ........     1,543,879       1,643,600
                                         ------------    ------------
                                            1,825,867       1,883,760
                                         ------------    ------------
             CABLE AND SATELLITE -- 0.9%
     20,000  Cablevision Systems Corp.,
               Cl. A+ .................       301,447         644,000
      5,000  DIRECTV Group Inc.+ ......        89,457          77,500
     18,000  EchoStar Communications
               Corp., Cl. A ...........       553,293         542,700
     19,500  Loral Space &
               Communications Ltd.+ ...         3,765           5,655
                                         ------------    ------------
                                              947,962       1,269,855
                                         ------------    ------------
             COMPUTER HARDWARE -- 0.1%
      2,000  International Business
               Machines Corp. .........       152,180         148,400
                                         ------------    ------------
             COMPUTER SOFTWARE AND SERVICES -- 2.0%
     28,000  Ask Jeeves Inc.+ .........       900,815         845,320
     55,000  Storage Technology Corp.+      2,002,330       1,995,950
                                         ------------    ------------
                                            2,903,145       2,841,270
                                         ------------    ------------
             CONSUMER PRODUCTS -- 0.8%
      2,000  Avon Products Inc. .......        73,975          75,700
     20,000  Gillette Co. .............     1,022,250       1,012,600
     10,000  Swedish Match AB .........       117,392         113,610
                                         ------------    ------------
                                            1,213,617       1,201,910
                                         ------------    ------------

                 See accompanying notes to financialstatements.

                                       5



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                       SCHEDULE OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2005 (UNAUDITED)

                                                              MARKET
     SHARES                                   COST            VALUE
   ----------                               --------        --------

             COMMON STOCKS (CONTINUED)
             ENERGY AND UTILITIES -- 8.7%
      4,000  Anadarko Petroleum Corp. .  $    271,991    $    328,600
     10,000  BP plc, ADR ..............       472,303         623,800
      3,000  CH Energy Group Inc. .....        83,900         145,890
     10,000  ConocoPhillips ...........       281,536         574,900
      2,000  Cooper Cameron Corp.+ ....       116,464         124,100
     25,000  Duke Energy Corp. ........       472,434         743,250
     30,000  Exxon Mobil Corp. ........     1,171,440       1,724,100
     30,448  FPL Group Inc. ...........       981,160       1,280,643
     20,000  Great Plains Energy Inc. .       598,719         637,800
     33,000  Kaneb Services LLC .......     1,421,980       1,428,240
      1,500  Murphy Oil Corp. .........        69,018          78,345
      4,000  National Fuel Gas Co. ....       107,880         115,640
     40,000  Northeast Utilities ......       722,124         834,400
     10,000  Progress Energy Inc., CVO+         5,200           1,350
     15,000  Public Service Enterprise
               Group Inc. .............       752,900         912,300
     20,000  Royal Dutch Petroleum Co.        989,253       1,298,000
     10,000  SJW Corp. ................       296,128         470,100
     12,000  Unocal Corp. .............       640,237         780,600
     20,000  Xcel Energy Inc. .........       334,874         390,400
                                         ------------    ------------
                                            9,789,541      12,492,458
                                         ------------    ------------
             EQUIPMENT AND SUPPLIES -- 0.1%
      5,000  Mueller Industries Inc. ..       220,747         135,500
      3,000  Tomkins plc, ADR .........        56,900          57,060
                                         ------------    ------------
                                              277,647         192,560
                                         ------------    ------------
             FINANCIAL SERVICES -- 4.8%
     32,000  Alliance Capital
               Management Holding LP ..     1,076,624       1,495,680
     40,000  American Express Co. .....     2,107,963       2,129,200
      4,000  American International
               Group Inc. .............       243,058         232,400
     12,000  Argonaut Group Inc.+ .....       203,647         277,080
     60,000  Citigroup Inc. ...........     2,790,063       2,773,800
                                         ------------    ------------
                                            6,421,355       6,908,160
                                         ------------    ------------
             FOOD AND BEVERAGE -- 5.6%
     10,000  Allied Domecq plc, ADR ...       373,673         484,700
     10,000  Cadbury Schweppes
               plc, ADR ...............       344,243         383,300
     17,000  Coca-Cola Co. ............       753,844         709,750
     70,000  Dreyer's Grand Ice Cream
               Holdings Inc., Cl. A ...     5,483,818       5,698,000
     15,000  General Mills Inc. .......       750,668         701,850
                                         ------------    ------------
                                            7,706,246       7,977,600
                                         ------------    ------------


                                                              MARKET
     SHARES                                   COST            VALUE
   ----------                               --------        --------

             HEALTH CARE -- 3.3%
     12,000  Bristol-Myers Squibb Co. .  $    319,665    $    299,760
     17,800  Eli Lilly & Co. ..........     1,038,342         991,638
     27,000  Merck & Co. Inc. .........       939,869         831,600
     82,000  Pfizer Inc. ..............     2,438,702       2,261,560
     15,000  Schering-Plough Corp. ....       236,353         285,900
                                         ------------    ------------
                                            4,972,931       4,670,458
                                         ------------    ------------
             HOTELS AND GAMING -- 1.0%
     20,000  Argosy Gaming Co.+ .......       930,238         932,200
    100,000  Hilton Group plc .........       479,570         512,873
                                          -----------      ----------
                                            1,409,808       1,445,073
                                          -----------      ----------
             RETAIL -- 1.0%
     50,000  Albertson's Inc. .........     1,165,595       1,034,000
    100,000  JumboSports Inc.+ ........             0               0
     20,000  Safeway Inc. .............       418,380         451,800
                                         ------------    ------------
                                            1,583,975       1,485,800
                                         ------------    ------------
             SPECIALTY CHEMICALS -- 0.1%
      5,000  E.I. du Pont de
               Nemours and Co. ........       236,931         215,050
                                         ------------    ------------
             TELECOMMUNICATIONS -- 0.8%
      2,000  ALLTEL Corp. .............       112,931         124,560
     20,000  AT&T Corp. ...............       366,286         380,800
     20,000  MCI Inc. .................       429,810         514,200
      5,000  SBC Communications Inc. ..       113,100         118,750
                                         ------------    ------------
                                            1,022,127       1,138,310
                                         ------------    ------------
             TRANSPORTATION -- 0.9%
     30,000  Overnite Corp. ...........     1,278,500       1,289,400
                                         ------------    ------------
             WIRELESS COMMUNICATIONS -- 0.0%
         49  Winstar Communications
               Inc.+ (a) ..............           438               0
                                         ------------    ------------
             TOTAL COMMON
               STOCKS .................    41,807,538      45,250,264
                                         ------------    ------------

             PREFERRED STOCKS -- 0.0%
             TELECOMMUNICATIONS -- 0.0%
      3,679  PTV Inc., 10.000% Pfd.,
               Ser. A .................             0           9,657
                                         ------------    ------------

                See accompanying notes to financial statements.

                                       6



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                       SCHEDULE OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2005 (UNAUDITED)

   PRINCIPAL                                                 MARKET
     AMOUNT                                   COST            VALUE
   ----------                               --------        --------

             CORPORATE BONDS -- 1.0%
             DIVERSIFIED INDUSTRIAL -- 1.0%
$ 2,000,000  GP Strategies Corp.,
               Sub. Deb.,
               6.000%, 08/14/08 (a)(d)   $  1,557,958    $  1,357,143
                                         ------------    ------------

    SHARES
    ------

             WARRANTS -- 0.6%
             CONSUMER PRODUCTS -- 0.0%
      4,331  Pillowtex Corp.,
               expire 11/24/09+ (a) ...       120,955               0
                                         ------------    ------------
             DIVERSIFIED INDUSTRIAL -- 0.6%
    250,000  GP Strategies Corp.,
               expire 08/14/08+ (a)(d)        637,065         819,283
    379,703  National Patent Development
               Corp., expire
               08/14/08+ (a)(d) .......             0          97,980
                                         ------------    ------------
                                              637,065         917,263
                                         ------------    ------------
             TOTAL WARRANTS                   758,020         917,263
                                         ------------    ------------
   PRINCIPAL
    AMOUNT
   ---------

             SHORT-TERM OBLIGATIONS -- 19.0%
             U.S.  GOVERNMENT  OBLIGATIONS -- 19.0%
$27,485,000  U.S.  Treasury Bills,
               2.718% to 3.221%++,
               07/07/05 to 10/20/05 ...    27,292,199      27,291,118
                                         ------------    ------------
             TOTAL SHORT-TERM
               OBLIGATIONS ............    27,292,199      27,291,118
                                         ------------    ------------
             TOTAL INVESTMENTS -- 100.0% $139,029,748     143,587,227
                                         ============

             OTHER ASSETS IN EXCESS OF LIABILITIES ..       2,058,687
                                                         ------------

             PREFERRED STOCK
               (991,800 preferred shares outstanding)     (49,770,000)
                                                         ------------

             NET ASSETS -- COMMON STOCK
               (11,866,695 common shares outstanding)    $ 95,875,914
                                                         ============
NET ASSET VALUE PER COMMON SHARE
   ($95,875,914 / 11,866,695 shares outstanding) ....           $8.08
                                                                =====
----------
(a)  Securities  fair  valued  under  procedures  established  by the  Board  of
     Directors.   The  procedures  may  include  reviewing  available  financial
     information  about  the  company  and  reviewing  valuation  of  comparable
     securities  and other  factors on a regular  basis.  At June 30, 2005,  the
     market value of fair valued  securities  amounted to $3,644,725 or 2.54% of
     total investments.
(b)  Security exempt from registration  under Rule 144A of the Securities Act of
     1933, as amended.  These  securities may be resold in  transactions  exempt
     from registration,  normally to qualified institutional buyers. At June 30,
     2005,  the market value of Rule 144A  securities  amounted to $4,624,512 or
     3.22% of total  investments.  Except as noted in (d), these  securities are
     liquid.
(c)  Bond in default.
(d)  At June 30, 2005,  the Fund held  investments  in  restricted  and illiquid
     securities that were valued under methods approved by the Board as follows:



ACQUISITION
  SHARES/                                                                            06/30/05
 PRINCIPAL                                        ACQUISITION      ACQUISITION    CARRYING VALUE
  AMOUNT    ISSUER                                    DATE            COST           PER UNIT
----------- ------                                -----------      -----------    --------------
                                                                           
    80,000  Amnex Inc., 8.500%, 09/25/49.            09/15/97      $   70,363    $         --
$2,000,000  GP Strategies Corp. 6.000%, 08/14/08     08/14/03       1,362,935          0.6786
   250,000  GP Strategies Corp.
              Warrants expire 08/14/08               08/08/03         657,065          3.2771
       100  Gray Television Inc.,
              8.000% Cv. Pfd., Ser. C                04/22/02       1,000,000     10,200.0000
    15,738  Interep National Radio Sales Inc.,
              4.000% Cv. Pfd., Ser. A .              05/03/02       1,514,203         22.2520
   379,703  National Patent Development Corp.
              Warrants expire 08/14/08.              11/24/05              --          0.2580

 +    Non-income producing security.
 ++   Represents annualized yield at date of purchase.
 ADR  American Depository Receipt
 CVO  Contingent Value Obligation

                See accompanying notes to financial statements.

                                       7



           THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

                       STATEMENT OF ASSETS AND LIABILITIES
                            JUNE 30, 2005 (UNAUDITED)

ASSETS:
  Investments, at value (cost $139,029,748) ...........   $143,587,227
  Cash ................................................        213,797
  Dividends and interest receivable ...................        959,090
  Receivable for investments sold .....................        660,000
  Unrealized appreciation on swap contracts ...........        545,251
  Other assets ........................................          3,722
                                                          ------------
  TOTAL ASSETS ........................................    145,969,087
                                                          ------------
LIABILITIES:
  Payable for investments purchased ...................        114,809
  Payable for investment advisory fees ................         78,435
  Payable for legal and audit fees ....................         27,404
  Payable for shareholder communications expenses .....         26,643
  Dividends payable ...................................         21,210
  Payable for payroll expenses ........................         15,805
  Payable for shareholder services fees ...............          1,106
  Other accrued expenses and liabilities ..............         37,761
                                                          ------------
  TOTAL LIABILITIES ...................................        323,173
                                                          ------------
PREFERRED STOCK:
  Series B Cumulative  Preferred Stock (6.00%,
    $25 liquidation value, $0.001 par value,
    1,995,000 shares authorized with 990,800
    shares issued and outstanding) ....................     24,770,000
  Series C Cumulative Preferred Stock (Auction
    Rate, $25,000 liquidation value, $0.001 par
    value, 5,000 shares authorized with 1,000
    shares issued and outstanding) ....................     25,000,000
                                                          ------------
  TOTAL PREFERRED STOCK ...............................     49,770,000
                                                          ------------
  NET ASSETS ATTRIBUTABLE TO COMMON
    STOCK SHAREHOLDERS ................................   $ 95,875,914
                                                          ============
NET ASSETS ATTRIBUTABLE TO COMMON STOCK
  SHAREHOLDERS CONSIST OF:
  Capital stock, at par value .........................     $   11,867
  Additional paid-in capital ..........................     92,622,902
  Accumulated net realized loss on investments,
    swap contracts and foreign
    currency transactions .............................     (1,861,550)
  Net unrealized appreciation on investments
    and swap contracts ................................      5,102,730
  Net unrealized depreciation on foreign
    currency translations .............................            (35)
                                                          ------------
  NET ASSETS ..........................................   $ 95,875,914
                                                          ============
  NET ASSET VALUE PER COMMON SHARE:
    ($95,875,914 / 11,866,695 shares outstanding;
    998,000,000 shares authorized of
    $0.001 par value)                                            $8.08
                                                                 =====


                             STATEMENT OF OPERATIONS
               FOR THE SIX MONTHS ENDED JUNE 30, 2005 (UNAUDITED)

INVESTMENT INCOME:
  Dividends (net of foreign taxes of $12,986) .........     $1,076,441
  Interest ............................................      2,088,293
                                                            ----------
  TOTAL INVESTMENT INCOME .............................      3,164,734
                                                            ----------
EXPENSES:
  Investment advisory fees ............................        723,364
  Shareholder communications expenses .................         58,311
  Payroll expenses ....................................         43,006
  Directors' fees .....................................         32,669
  Auction agent fees ..................................         31,200
  Legal and audit fees ................................         31,091
  Shareholder services fees ...........................         24,995
  Custodian fees ......................................         21,250
  Miscellaneous expenses ..............................         55,972
                                                            ----------
  TOTAL EXPENSES ......................................      1,021,858
  LESS:
    Advisory fee reduction ............................       (246,805)
    Custodian fee credit ..............................         (1,039)
                                                            ----------
    TOTAL REDUCTIONS AND CREDITS ......................       (247,844)
                                                            ----------
  TOTAL NET EXPENSES ..................................        774,014
                                                            ----------
  NET INVESTMENT INCOME ...............................      2,390,720
                                                            ----------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS, SWAP CONTRACTS AND
  FOREIGN CURRENCY:
  Net realized loss on investments ....................       (261,053)
  Net realized loss on swap contracts .................        (62,282)
  Net realized gain on foreign currency transactions ..        139,838
                                                            ----------
  Net realized loss on investments, swap contracts
    and foreign currency transactions .................       (183,497)
  Net change in unrealized appreciation/depreciation
    on investments, swap contracts and foreign
    currency translations .............................        696,867
                                                            ----------
  NET REALIZED AND UNREALIZED GAIN ON INVESTMENTS,
    SWAP CONTRACTS AND FOREIGN CURRENCY ...............        513,370
                                                            ----------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ...................................      2,904,090
                                                            ----------
  Total Distributions to Preferred
    Stock Shareholders ................................     (1,112,867)
                                                            ----------
  NET INCREASE IN NET ASSETS ATTRIBUTABLE TO
    COMMON STOCK SHAREHOLDERS RESULTING
    FROM OPERATIONS ...................................     $1,791,223
                                                            ==========


                 See accompanying notes to financial statements.

                                       8



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

     STATEMENT OF CHANGES IN NET ASSETS ATTRIBUTABLE TO COMMON SHAREHOLDERS



                                                                                       SIX MONTHS ENDED
                                                                                         JUNE 30, 2005           YEAR ENDED
                                                                                          (UNAUDITED)         DECEMBER 31, 2004
                                                                                       ----------------       -----------------
                                                                                                              
OPERATIONS:
  Net investment income ..............................................................    $ 2,390,720           $  4,383,059
  Net realized loss on investments, swap contracts and foreign currency transactions         (183,497)              (977,009)
  Net change in unrealized appreciation/depreciation on investments, swap
    contracts and foreign currency translations ......................................        696,867                615,236
                                                                                          -----------           ------------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ...............................      2,904,090              4,021,286
                                                                                          -----------           ------------
DISTRIBUTIONS TO PREFERRED STOCK SHAREHOLDERS:
  Net investment income ..............................................................     (1,112,867)*           (1,864,559)
                                                                                          -----------           ------------
  TOTAL DISTRIBUTIONS TO PREFERRED STOCK SHAREHOLDERS ................................     (1,112,867)            (1,864,559)
                                                                                          -----------           ------------
  NET INCREASE IN NET ASSETS ATTRIBUTABLE TO COMMON STOCK SHAREHOLDERS
    RESULTING FROM OPERATIONS ........................................................      1,791,223              2,156,727
                                                                                          -----------           ------------
DISTRIBUTIONS TO COMMON STOCK SHAREHOLDERS:
  Net investment income ..............................................................     (1,277,853)*           (2,086,763)
  Return of capital ..................................................................     (3,403,466)*           (7,136,741)
                                                                                          -----------           ------------
  TOTAL DISTRIBUTIONS TO COMMON STOCK SHAREHOLDERS ...................................     (4,681,319)            (9,223,504)
                                                                                          -----------           ------------
CAPITAL SHARE TRANSACTIONS:
  Net increase in net assets from common shares issued upon reinvestment of
    dividends and distributions ......................................................      1,334,039              2,830,783
  Net increase in net assets from repurchase of preferred shares .....................             --                 12,828
  Offering costs for preferred shares charged to paid-in capital .....................             --                 (3,000)
                                                                                          -----------           ------------
  NET INCREASE IN NET ASSETS FROM FUND SHARE TRANSACTIONS ............................      1,334,039              2,840,611
                                                                                          -----------           ------------
  NET DECREASE IN NET ASSETS ATTRIBUTABLE TO COMMON STOCK SHAREHOLDERS ...............     (1,556,057)            (4,226,166)
NET ASSETS ATTRIBUTABLE TO COMMON STOCK SHAREHOLDERS:
  Beginning of period ................................................................     97,431,971            101,658,137
                                                                                          -----------           ------------
  End of period ......................................................................    $95,875,914           $ 97,431,971
                                                                                          ===========           ============

----------
*Amounts are subject to change and recharacterization at fiscal year end.


                 See accompanying notes to financial statements.

                                        9



            THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)


1.  ORGANIZATION.  The Gabelli  Convertible and Income Securities Fund Inc. (the
"Fund") is a diversified  closed-end  management  investment  company registered
under the  Investment  Company Act of 1940,  as amended (the "1940 Act"),  whose
investment  objective  is to  seek  a high  level  of  total  return  through  a
combination  of  current  income  and  capital   appreciation  by  investing  in
convertible  securities.  The Fund was  incorporated in Maryland on December 19,
1988 as an open-end  diversified  management  investment  company and  commenced
investment  operations  on July 3, 1989 as The  Gabelli  Convertible  Securities
Fund,  Inc. The Board of Directors  (the  "Board"),  upon  approval at a special
meeting  of  shareholders  held on  February  17,  1995,  voted to  approve  the
conversion of the Fund to closed-end status, effective March 31, 1995.

     Effective  August  1,  2002,  the  Fund  changed  its  name to The  Gabelli
Convertible and Income Securities Fund Inc.  Consistent with its new name, under
normal market conditions, the Fund will invest at least 80% of its net assets in
a combination of convertible  securities and income  producing  securities  (the
"80%  Policy").  The Fund  expects to  continue  its  practice  of  focusing  on
convertible securities to the extent attractive opportunities are available. The
80% Policy may be changed without shareholder  approval.  However,  the Fund has
adopted a policy to provide  shareholders  with notice at least 60 days prior to
the implementation of any change in the 80% Policy.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance  with  U.S.  generally  accepted   accounting   principles   requires
management to make estimates and  assumptions  that affect the reported  amounts
and  disclosures in the financial  statements.  Actual results could differ from
those estimates.  The following is a summary of significant  accounting policies
followed by the Fund in the preparation of its financial statements.

     SECURITY VALUATION.  Portfolio  securities listed or traded on a nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board so determines,  by such other method as the Board shall  determine in good
faith,  to reflect its fair market value.  Portfolio  securities  traded on more
than one  national  securities  exchange or market are valued  according  to the
broadest and most  representative  market,  as determined by Gabelli Funds,  LLC
(the "Adviser").

     Portfolio  securities  primarily  traded on foreign  markets are  generally
valued at the preceding  closing values of such  securities on their  respective
exchanges or if after the close of the foreign  markets,  but prior to the close
of business on the day the securities are being valued, market conditions change
significantly,  certain  foreign  securities  may be  fair  valued  pursuant  to
procedures  established  by the  Board.  Debt  instruments  that are not  credit
impaired  with  remaining  maturities of 60 days or less are valued at amortized
cost,  unless the Board  determines such amount does not reflect the securities'
fair value, in which case these securities will be valued at their fair value as
determined by the Board. Debt instruments having a maturity greater than 60 days
for which  market  quotations  are  readily  available  are valued at the latest
average of the bid and asked  prices.  If there were no asked  prices  quoted on
such day, the security is valued using the closing bid price.  Futures contracts
are valued at the closing  settlement price of the exchange or board of trade on
which the applicable contract is traded.

     Securities and assets for which market quotations are not readily available
are valued at their  fair value as  determined  in good faith  under  procedures
established by and under the general  supervision  of the Board.  Fair valuation
methodologies  and procedures may include,  but are not limited to: analysis and
review of available financial and non-


                                       10



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

financial  information  about the  company;  comparisons  to the  valuation  and
changes in valuation of similar  securities,  including a comparison  of foreign
securities to the  equivalent  U.S.  dollar value ADR securities at the close of
the U.S.  exchange;  and  evaluation  of any  other  information  that  could be
indicative of the value of the security.

     REPURCHASE  AGREEMENTS.  The Fund may enter into repurchase agreements with
primary  government  securities dealers recognized by the Federal Reserve Board,
with member banks of the Federal Reserve System or with other brokers or dealers
that meet credit  guidelines  established  by the  Adviser  and  reviewed by the
Board.  Under  the  terms of a  typical  repurchase  agreement,  the Fund  takes
possession  of an  underlying  debt  obligation  subject to an obligation of the
seller to repurchase,  and the Fund to resell,  the obligation at an agreed-upon
price and time, thereby  determining the yield during the Fund's holding period.
The Fund will always receive and maintain  securities as collateral whose market
value, including accrued interest,  will be at least equal to 102% of the dollar
amount  invested by the Fund in each  agreement.  The Fund will make payment for
such  securities  only upon  physical  delivery  or upon  evidence of book entry
transfer of the collateral to the account of the  custodian.  To the extent that
any repurchase transaction exceeds one business day, the value of the collateral
is marked-to-market on a daily basis to maintain the adequacy of the collateral.
If the seller defaults and the value of the collateral declines or if bankruptcy
proceedings   are  commenced  with  respect  to  the  seller  of  the  security,
realization of the collateral by the Fund may be delayed or limited.

     SWAP  AGREEMENTS.  The  Fund  may  enter  into  interest  rate  swap or cap
transactions.  The use of interest  rate swaps and caps is a highly  specialized
activity that involves  investment  techniques  and risks  different  from those
associated with ordinary  portfolio security  transactions.  In an interest rate
swap,  the Fund would agree to pay to the other party to the interest  rate swap
(which is known as the  "counterparty")  periodically  a fixed  rate  payment in
exchange  for  the  counterparty  agreeing  to pay to the  Fund  periodically  a
variable rate payment that is intended to approximate  the Fund's  variable rate
payment obligation on the Series C Preferred Stock. In an interest rate cap, the
Fund would pay a premium to the counterparty and, to the extent that a specified
variable rate index exceeds a predetermined  fixed rate,  would receive from the
counterparty  payments of the  difference  based on the notional  amount of such
cap. Interest rate swap and cap transactions  introduce  additional risk because
the Fund would remain  obligated to pay preferred  stock  dividends  when due in
accordance with the Articles  Supplementary even if the counterparty  defaulted.
If there is a default by the  counterparty to a swap contract,  the Fund will be
limited  to  contractual  remedies  pursuant  to the  agreements  related to the
transaction. There is no assurance that the swap contract counterparties will be
able to meet their  obligations  pursuant to the swap  contracts or that, in the
event of default,  the Fund will succeed in pursuing contractual  remedies.  The
Fund thus assumes the risk that it may be delayed in or prevented from obtaining
payments owed to it pursuant to the swap contracts.  The creditworthiness of the
swap  contract  counterparties  is closely  monitored in order to minimize  this
risk.  Depending  on the  general  state of short  term  interest  rates and the
returns on the Fund's portfolio securities at that point in time, such a default
could  negatively  affect the Fund's  ability to make dividend  payments for the
Series C Preferred Stock. In addition,  at the time an interest rate swap or cap
transaction  reaches its scheduled  termination  date,  there is a risk that the
Fund will not be able to obtain a replacement  transaction  or that the terms of
the replacement will not be as favorable as on the expiring transaction. If this
occurs,  it could have a negative  impact on the Fund's ability to make dividend
payments on the Series C Preferred Stock.

     The use of derivative instruments involves, to varying degrees, elements of
market risk in excess of the amount  recognized  in the  Statement of Assets and
Liabilities.


                                       11



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)


     Unrealized  gains related to swaps are reported as an asset and  unrealized
losses  are   reported  as  a  liability   on  the   Statement   of  Assets  and
Liabilities. The change in value of swaps,  including  the  accrual of  periodic
amounts of interest  to be paid or  received on swaps is reported as  unrealized
gains or  losses  in the  Statement  of  Operations. A realized  gain or loss is
recorded upon payment or receipt of a periodic  payment or  termination  of swap
agreements. Swap agreements involve, to varying degrees,  elements of market and
counterparty  risk,  and  exposure  to loss in  excess  of the  related  amounts
reflected in the Statement of Assets and Liabilities.

     The Fund has entered into one interest  rate swap  agreement  with Citibank
N.A.  Under the agreement the Fund receives a variable rate of interest and pays
a respective fixed rate of interest on the nominal value of the swap. Details of
the swap at June 30, 2005 are as follows:



              NOTIONAL                                VARIABLE RATE*               TERMINATION           UNREALIZED
               AMOUNT            FIXED RATE        (RATE RESET MONTHLY)               DATE              APPRECIATION
             ---------           ----------        --------------------            -----------          ------------
                                                                                              
             $25,000,000           3.145%                  3.13%                  April 2, 2008           $545,251

----------
*Based on Libor (London Interbank Offered Rate).

     FUTURES CONTRACTS. The Fund may engage in futures contracts for the purpose
of hedging against  changes in the value of its portfolio  securities and in the
value of securities it intends to purchase.  Such  investments will only be made
if they are  economically  appropriate to the reduction of risks involved in the
management of the Fund's investments. Upon entering into a futures contract, the
Fund  is  required  to  deposit  with  the  broker  an  amount  of  cash or cash
equivalents equal to a certain percentage of the contract amount.  This is known
as the "initial margin."  Subsequent payments  ("variation  margin") are made or
received by the Fund each day,  depending on the daily  fluctuation of the value
of the  contract.  The daily  changes in the contract are included in unrealized
appreciation/depreciation   on  investments  and  futures  contracts.  The  Fund
recognizes  a realized  gain or loss when the  contract  is closed.  At June 30,
2005, there were no open futures contracts.

     There are several risks in connection with the use of futures  contracts as
a hedging device. The change in value of futures contracts primarily corresponds
with the value of their underlying instruments, which may not correlate with the
change in value of the hedged  investments.  These  contracts may involve market
risk in excess of the  unrealized  gain or loss  reflected  in the  Statement of
Assets and Liabilities.  In addition, there is the risk that the Fund may not be
able to enter  into a  closing  transaction  because  of an  illiquid  secondary
market.

     FORWARD FOREIGN EXCHANGE CONTRACTS.  The Fund may engage in forward foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the  transaction is denominated or another  currency as deemed
appropriate by the Adviser. Forward foreign exchange contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
included in  unrealized  appreciation/depreciation  on  investments  and foreign
currency transactions.  When the contract is closed, the Fund records a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was opened and the value at the time it was closed.

     The  use  of  forward  foreign   exchange   contracts  does  not  eliminate
fluctuations in the underlying prices of the Fund's portfolio securities, but it
does  establish a rate of exchange that can be achieved in the future.  Although
forward  foreign  exchange  contracts limit the risk of loss due to a decline in
the value of the hedged currency,  they also limit any potential gain that might
result should the value of the currency  increase.  These  contracts may involve
market risk in excess of the unrealized  gain or loss reflected in the Statement
of Assets and  Liabilities.  In addition,  the Fund could be exposed to risks if
the  counterparties  to the  contracts  are  unable  to meet the  terms of their
contracts.  At June  30,  2005,  there  were no open  forward  foreign  exchange
contracts.


                                       12




             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

     FOREIGN  CURRENCY  TRANSLATIONS.  The  books  and  records  of the Fund are
maintained in United States (U.S.) dollars. Foreign currencies,  investments and
other assets and liabilities  are translated  into U.S.  dollars at the exchange
rates prevailing at the end of the period, and purchases and sales of investment
securities,  income and expenses are translated at the exchange rate  prevailing
on the respective dates of such transactions. Unrealized gains and losses, which
result from changes in foreign exchange rates and/or changes in market prices of
securities,  have  been  included  in  unrealized  appreciation/depreciation  on
investments and foreign  currency  translations.  Net realized  foreign currency
gains and losses  resulting  from  changes in  exchange  rates  include  foreign
currency gains and losses  between trade date and settlement  date on investment
securities  transactions,  foreign  currency  transactions  and  the  difference
between the amounts of interest and dividends  recorded on the books of the Fund
and the amounts  actually  received.  The portion of foreign  currency gains and
losses  related to  fluctuation in exchange rates between the initial trade date
and  subsequent  sale  trade  date  is  included  in  realized   gain/(loss)  on
investments.

     FOREIGN  SECURITIES.  The Fund may directly purchase  securities of foreign
issuers.  Investing in securities of foreign issuers  involves special risks not
typically  associated  with investing in securities of U.S.  issuers.  The risks
include  possible  revaluation of currencies,  the ability to repatriate  funds,
less complete financial  information about companies and possible future adverse
political  and  economic  developments.  Moreover,  securities  of many  foreign
issuers and their markets may be less liquid and their prices more volatile than
those of securities of comparable U.S. issuers.

     SECURITIES TRANSACTIONS AND INVESTMENT INCOME.  Securities transactions are
accounted  for as of the trade date with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium  and  accretion  of  discount)  is  recorded as earned.
Dividend income is recorded on the ex-dividend date.

     DIVIDENDS  AND  DISTRIBUTIONS  TO  SHAREHOLDERS.  Distributions  to  common
shareholders  are recorded on the ex-dividend  date.  Income  distributions  and
capital gain  distributions are determined in accordance with Federal income tax
regulations which may differ from that determined under U.S.  generally accepted
accounting  principles.   These  differences  are  primarily  due  to  differing
treatments  of income and gains on  various  investment  securities  held by the
Fund, timing differences and differing  characterizations  of distributions made
by the Fund.

     Distributions  to  shareholders  of the Fund's  6.00%  Series B  Cumulative
Preferred   Stock  and  Series  C  Auction  Rate   Cumulative   Preferred  Stock
("Cumulative  Preferred Stock") are recorded on a daily basis and are determined
as described in Note 5.

     For the year  ended  December  31,  2004,  reclassifications  were  made to
decrease   accumulated  net  investment  income  by  $416,684  and  to  decrease
accumulated  net  realized  loss on  investments,  swap  contracts  and  foreign
currency transactions by $416,684.

     The tax character of distributions  paid during the year ended December 31,
2004 was as follows:

                                                              YEAR ENDED
                                                          DECEMBER 31, 2004
                                                       -------------------------
                                                        COMMON        PREFERRED
                                                       -------------------------
    DISTRIBUTIONS PAID FROM:
    Ordinary income
      (inclusive of short term capital gains) .....    $2,086,763    $1,864,559
    Non-taxable return of capital .................     7,136,741            --
                                                       ----------    ----------
    Total distributions paid ......................    $9,223,504    $1,864,559
                                                       ==========    ==========

                                       13



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)


     PROVISION  FOR INCOME  TAXES.  The Fund intends to continue to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986,  as  amended  (the  "Code").  It is the Fund's  policy to comply  with the
requirements  of the Code  applicable to regulated  investment  companies and to
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for Federal income taxes is required.

     As of December 31, 2004, the components of accumulated earnings/(losses) on
a tax basis were as follows:

           Net unrealized appreciation ..............    $2,727,775
           Other ....................................      (207,793)
                                                         ----------
           Total ....................................    $2,519,982
                                                         ==========

     Other is primarily due to dividends payable and defaulted interest.

     Differences between amounts reported on a tax basis and those reported on a
book  basis are  primarily  due to timing of  recognition  of  capital  gains on
investments held by the Fund.

     The  following  summarizes  the tax cost of  investments,  swap  contracts,
foreign currency and related  unrealized  appreciation/depreciation  at June 30,
2005:


                                                            GROSS              GROSS       NET UNREALIZED
                                                         UNREALIZED         UNREALIZED      APPRECIATION
                                           COST         APPRECIATION       DEPRECIATION    (DEPRECIATION)
                                           ----         ------------       ------------    --------------
                                                                                     
           Investments ............   $139,815,479      $ 9,666,003       $(5,894,255)       $3,771,748
           Swap contracts .........             --          545,251                --           545,251
           Foreign currency .......             --               --               (35)              (35)
                                                        -----------       -----------        ----------
                                                        $10,211,254       $(5,894,290)       $4,316,964
                                                        ===========       ===========        ==========


3. AGREEMENTS AND  TRANSACTIONS  WITH  AFFILIATES.  The Fund has entered into an
investment advisory agreement (the "Advisory  Agreement") with the Adviser which
provides  that the Fund will pay the  Adviser a fee,  computed  weekly  and paid
monthly,  equal on an annual  basis to 1.00% of the value of the Fund's  average
weekly net assets including  liquidation value of preferred stock. In accordance
with the  Advisory  Agreement,  the  Adviser  provides a  continuous  investment
program for the Fund's portfolio and oversees the  administration of all aspects
of the  Fund's  business  and  affairs.  The  Adviser  has  agreed to reduce the
management  fee  on  the  incremental  assets  attributable  to  the  Cumulative
Preferred  Stock if the total return of the net asset value of the Common Shares
of the Fund, including distributions and advisory fee subject to reduction, does
not exceed  the  stated  dividend  rate or net swap  expense  of the  Cumulative
Preferred Stock for the fiscal year.

     The Fund's  total  return on the net asset  value of the  Common  Shares is
monitored on a monthly basis to assess whether the total return on the net asset
value of the Common Shares exceeds the stated  dividend rate of each  particular
series of Cumulative  Preferred  Stock for the period.  For the six months ended
June 30,  2005,  the Fund's  total  return on the net asset  value of the Common
Shares  did not  exceed  the  stated  dividend  rate or net swap  expense of all
outstanding   preferred  stock.  Thus,  management  fees  with  respect  to  the
liquidation  value of the preferred  stock assets in the amount of $246,805 were
not accrued.

     During  the six  months  ended  June 30,  2005,  Gabelli  &  Company,  Inc.
("Gabelli  &  Company"),  an  affiliate  of the  Adviser,  received  $34,797  in
brokerage  commissions as a result of executing agency transactions in portfolio
securities on behalf of the Fund.


                                       14



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

     The cost of  calculating  the  Fund's  net asset  value per share is a Fund
expense pursuant to the Advisory Agreement. During the six months ended June 30,
2005,  the Fund  reimbursed the Adviser  $22,500 in connection  with the cost of
computing  the  Fund's  net asset  value,  which is  included  in  miscellaneous
expenses in the Statement of Operations.

     The Fund is  assuming  its  portion of the  allocated  cost of the  Gabelli
Funds'  Chief  Compliance  Officer  in the  amount of $2,022  for the  period of
January 1, 2005 through June 30, 2005,  which is included in payroll expenses in
the Statement of Operations.

4.  PORTFOLIO  SECURITIES.  Costs of purchases  and  proceeds  from the sales of
securities,  other than short term securities, for the six months ended June 30,
2005 aggregated $42,622,006 and $11,949,772, respectively.

5. CAPITAL.  The charter  permits the Fund to issue one billion shares of common
stock (par value $0.001). The Board of the Fund has authorized the repurchase of
up to  500,000  shares on the open  market  when the  shares  are  trading  at a
discount  of 10% or more (or such other  percentage  as the Board may  determine
from time to time) from the net asset value of the shares. During the six months
ended June 30, 2005, the Fund did not repurchase any shares of common stock. All
shares of common stock repurchased have been retired.

     Transactions in common stock were as follows:



                                                             SIX MONTHS ENDED
                                                               JUNE 30, 2005                YEAR ENDED
                                                                (UNAUDITED)              DECEMBER 31, 2004
                                                          ----------------------      -----------------------
                                                            Shares      Amount          Shares       Amount
                                                          ----------  ----------      ---------    ----------
                                                                                           
           Shares issued upon reinvestment of dividends
             and distributions ..........................   149,655    $1,334,039       295,393    $2,830,783
                                                            -------    ----------       -------    ----------
           Net increase .................................   149,655    $1,334,039       295,393    $2,830,783
                                                            =======    ==========       =======    ==========


     The Fund's  Articles  of  Incorporation  authorize  the  issuance  of up to
2,000,000 shares of $0.001 par value Cumulative  Preferred Stock. The Cumulative
Preferred  Stock is senior to the  common  stock and  results  in the  financial
leveraging of the common stock.  Such leveraging tends to magnify both the risks
and opportunities to common shareholders.  Dividends on shares of the Cumulative
Preferred Stock are cumulative.  The Fund is required by the 1940 Act and by the
Articles  Supplementary to meet certain asset coverage tests with respect to the
Cumulative  Preferred  Stock. If the Fund fails to meet these  requirements  and
does not correct such failure, the Fund may be required to redeem, in part or in
full, the 6% Series B and Series C Auction Rate Cumulative  Preferred Stock at a
redemption price of $25.00 and $25,000,  respectively,  per share plus an amount
equal to the  accumulated and unpaid  dividends  whether or not declared on such
shares in order to meet these  requirements.  Additionally,  failure to meet the
foregoing asset coverage  requirements  could restrict the Fund's ability to pay
dividends to common shareholders and could lead to sales of portfolio securities
at  inopportune  times.  The income  received on the Fund's assets may vary in a
manner  unrelated  to the fixed and  variable  rates,  which could have either a
beneficial or detrimental impact on net investment income and gains available to
common shareholders.


                                       15



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

     On March 18, 2003,  the Fund  received net proceeds of  $23,996,775  (after
underwriting  discounts of $787,500 and offering  expenses of $215,725) from the
public  offering of  1,000,000  shares of 6.00%  Series B  Cumulative  Preferred
Stock.  Commencing March 19, 2008 and thereafter,  the Fund, at its option,  may
redeem the 6.00% Series B Cumulative  Preferred Stock in whole or in part at the
redemption  price. The Board has authorized the repurchase in the open market at
prices less than the $25 liquidation  value of the Cumulative  Preferred  Stock.
During  the six months  ended June 30,  2005,  the Fund did not  repurchase  any
shares of 6% Series B Cumulative  Preferred  Stock.  At June 30,  2005,  990,800
shares  of the 6% Series B  Cumulative  Preferred  Stock  were  outstanding  and
accrued dividends amounted to $16,513.

     On March 18, 2003,  the Fund  received net proceeds of  $24,534,275  (after
underwriting  discounts of $250,000 and offering  expenses of $215,725) from the
public  offering of 1,000 shares of Series C Auction Rate  Cumulative  Preferred
Stock. The dividend rate, as set by the auction process, which is generally held
every 7 days, is expected to vary with short-term  interest rates.  The dividend
rates of Series C Auction Rate  Cumulative  Preferred Stock ranged from 1.77% to
3.33% for the six months ended June 30, 2005.  Existing  shareholders may submit
an order to hold, bid or sell such shares on each auction date. Series C Auction
Rate  Cumulative  Preferred  Stock  shareholders  may also  trade  shares in the
secondary market.  The Fund, at its option, may redeem the Series C Auction Rate
Cumulative  Preferred  Stock in whole or in part at the redemption  price at any
time.  During the six months  ended June 30,  2005,  the Fund did not redeem any
shares of Series C Auction Rate  Cumulative  Preferred  Stock. At June 30, 2005,
1,000  shares of the  Series C Auction  Rate  Cumulative  Preferred  Stock  were
outstanding  with an  annualized  dividend  rate of 3.33% and accrued  dividends
amounted to $4,625.

     The holders of Cumulative  Preferred Stock have voting rights equivalent to
those of the holders of common stock (one vote per share) and will vote together
with holders of shares of common stock as a single class. In addition,  the 1940
Act  requires  that along with  approval  of a majority of the holders of common
stock,  approval  of a  majority  of the  holders of any  outstanding  shares of
Cumulative  Preferred Stock,  voting separately as a class, would be required to
(a) adopt any plan of reorganization  that would adversely affect the Cumulative
Preferred Stock,  and (b) take any action requiring a vote of security  holders,
including,  among other  things,  changes in the Fund's  subclassification  as a
closed-end   investment  company  or  changes  in  its  fundamental   investment
restrictions.

6. OTHER MATTERS. The Adviser and/or affiliates have received subpoenas from the
Attorney General of the State of New York and the SEC requesting  information on
mutual fund  shares  trading  practices.  Gabelli  Asset  Management  Inc.,  the
Adviser's  parent  company,  is responding  to these  requests for documents and
testimony.  The Fund does not believe  that these  matters  will have a material
adverse  effect  on  the  Fund's  financial  position  or  the  results  of  its
operations.

7.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts and expects the risk of loss to be remote.


                                       16



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                              FINANCIAL HIGHLIGHTS


SELECTED DATA FOR A SHARE OF COMMON STOCK          SIX MONTHS ENDED                   YEAR ENDED DECEMBER 31,
OUTSTANDING THROUGHOUT EACH PERIOD:                  JUNE 30, 2005  -----------------------------------------------------------
                                                    (UNAUDITED)(D)    2004(D)      2003(D)      2002        2001        2000
                                                   ---------------- ----------    ---------   --------    --------    ---------

                                                                                                     
OPERATING PERFORMANCE:
  Net asset value, beginning of period ..............   $ 8.32       $ 8.90        $ 8.44      $ 9.92      $ 10.02     $ 11.40
                                                        ------       ------        ------      ------      -------     -------
  Net investment income .............................     0.22         0.34          0.31        0.49         0.68        0.72
  Net realized and unrealized gain (loss) on
    investments .....................................     0.02         0.01          1.19       (0.76)        0.32       (0.52)
                                                        ------       ------        ------      ------      -------     -------
  Total from investment operations ..................     0.24         0.35          1.50       (0.27)        1.00        0.20
                                                        ------       ------        ------      ------      -------     -------
DISTRIBUTIONS TO PREFERRED STOCK SHAREHOLDERS:
  Net investment income .............................    (0.09)(g)    (0.16)        (0.11)      (0.28)       (0.18)      (0.13)
  Net realized gain on investments ..................       --(g)        --         (0.03)         --        (0.12)      (0.17)
                                                        ------       ------        ------      ------      -------     -------
  Total distributions to preferred stock shareholders    (0.09)       (0.16)        (0.14)      (0.28)       (0.30)      (0.30)
                                                        ------       ------        ------      ------      -------     -------
  NET INCREASE (DECREASE) IN NET ASSETS ATTRIBUTABLE
    TO COMMON STOCK SHAREHOLDERS RESULTING
    FROM OPERATIONS .................................     0.15         0.19          1.36       (0.55)        0.70       (0.10)
                                                        ------       ------        ------      ------      -------     -------
DISTRIBUTIONS TO COMMON STOCK SHAREHOLDERS:
  Net investment income .............................    (0.11)(g)    (0.18)        (0.17)      (0.27)       (0.48)      (0.57)
  Net realized gain on investments ..................       --(g)        --         (0.03)         --        (0.33)      (0.73)
  Paid-in capital ...................................    (0.29)(g)    (0.62)        (0.60)      (0.48)          --          --
                                                        ------       ------        ------      ------      -------     -------
  Total distributions to common stock shareholders ..    (0.40)(g)    (0.80)        (0.80)      (0.75)       (0.81)      (1.30)
                                                        ------       ------        ------      ------      -------     -------
CAPITAL SHARE TRANSACTIONS:
  Increase in net asset value from common share
    transactions ....................................     0.01         0.03          0.02        0.02         0.01        0.02
  Decrease in net asset value from shares issued in
    rights offering .................................       --           --            --       (0.20)          --          --
  Increase in net asset value from repurchase of
    preferred shares ................................       --         0.00(a)         --          --           --          --
  Offering costs for preferred shares charged to
    paid-in capital .................................       --         0.00(a)      (0.12)         --           --          --
                                                        ------       ------        ------      ------      -------    -------
  Total capital share transactions ..................     0.01         0.03         (0.10)      (0.18)        0.01        0.02
                                                        ------       ------        ------      ------      -------    -------
  NET ASSET VALUE ATTRIBUTABLE TO COMMON STOCK
    SHAREHOLDERS, END OF PERIOD .....................   $ 8.08       $ 8.32        $ 8.90      $ 8.44      $  9.92     $ 10.02
                                                        ======       ======        ======      ======      =======     =======
  Net asset value total return + ....................      2.0%         1.5%         14.5%       (7.0)%        7.0%        0.0%
                                                        ======       ======        ======      ======      =======     =======
  Market value, end of period .......................   $ 9.93       $ 9.24       $ 10.54      $ 8.55      $ 10.90      $ 9.13
                                                        ======       ======        ======      ======      =======     =======
  Total investment return ++ ........................     12.3%        (4.8)%        33.9%      (14.2)%       29.1%       (1.7)%
                                                        ======       ======        ======      ======      =======     =======


                 See accompanying notes to financial statements.

                                       17



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                        FINANCIAL HIGHLIGHTS (CONTINUED)



SELECTED DATA FOR A SHARE OF COMMON STOCK          SIX MONTHS ENDED                   YEAR ENDED DECEMBER 31,
OUTSTANDING THROUGHOUT EACH PERIOD:                  JUNE 30, 2005  -----------------------------------------------------------
                                                    (UNAUDITED)(D)    2004(D)      2003(D)      2002        2001        2000
                                                   ---------------- ----------    ---------   --------    --------    ---------
                                                                                                     
RATIOS AND SUPPLEMENTAL DATA:
  Net assets including liquidation value of preferred
    shares, end of period (in 000's) ...............  $145,646     $147,202      $151,658   $108,774      $110,074    $108,066
  Net assets attributable to common shares,
    end of period (in 000's) .......................  $ 95,876     $ 97,432      $101,658   $ 93,774      $ 80,074    $ 78,066
  Ratio of net investment income to average
    net assets attributable to common stock ........      5.01%(f)     4.41%         3.47%      5.32%         6.58%       6.49%
  Ratio of operating expenses to average net assets
    attributable to common stock before fee reduction     2.14%(f)     2.12%         1.93%      1.77%         1.83%       1.82%
  Ratio of operating expenses to average net assets
    attributable to common stock net of fee reduction (e) 1.62%(f)     1.61%         1.93%      1.58%         1.46%       1.48%
  Ratio of operating expenses to average net assets
    including liquidation value of preferred shares
    before fee reduction ...........................      1.41%(f)     1.41%         1.37%      1.30%         1.34%       1.35%
  Ratio of operating expenses to average net assets
    including liquidation value of preferred shares
    net of fee reduction (e) .......................      1.07%(f)     1.07%         1.37%      1.15%         1.07%       1.10%
  Portfolio turnover rate ..........................        11%          57%           39%        56%           59%        169%
PREFERRED STOCK:
  8.00% CUMULATIVE PREFERRED STOCK
  Liquidation value, end of period (in 000's) ......        --           --            --    $15,000       $30,000     $30,000
  Total shares outstanding (in 000's) ..............        --           --            --        600         1,200       1,200
  Liquidation preference per share .................        --           --            --     $25.00        $25.00      $25.00
  Average market value (b) .........................        --           --            --     $25.83        $25.80      $24.31
  Asset coverage per share .........................        --           --            --    $181.29        $91.73      $90.06
  6.00% CUMULATIVE PREFERRED STOCK
  Liquidation value, end of period (in 000's) ......   $24,770      $24,770       $25,000         --            --          --
  Total shares outstanding (in 000's) ..............       991          991         1,000         --            --          --
  Liquidation preference per share .................    $25.00       $25.00        $25.00         --            --          --
  Average market value (b) .........................    $25.15       $24.90        $25.33         --            --          --
  Asset coverage per share .........................    $73.16       $73.94        $75.83         --            --          --
  AUCTION RATE CUMULATIVE PREFERRED STOCK
  Liquidation value, end of period (in 000's) ......   $25,000      $25,000       $25,000         --            --          --
  Total shares outstanding (in 000's) ..............         1            1             1         --            --          --
  Liquidation preference per share .................   $25,000      $25,000       $25,000         --            --          --
  Average market value (b) .........................   $25,000      $25,000       $25,000         --            --          --
  Asset coverage per share .........................   $73,159      $73,941       $75,829         --            --          --
  ASSET COVERAGE (C) ...............................       293%         296%          303%       725%          367%        360%

----------
   + Based  on  net  asset  value  per  share,   adjusted  for  reinvestment  of
     distributions at net asset value on the ex-dividend  date. Total return for
     the period of less than one year is not annualized.
  ++ Based on market value per share, adjusted for reinvestment of distributions
     on the payment  date.  Total return for the period of less than one year is
     not annualized.
 (a) Amount represents less than $0.005 per share.
 (b) Based on weekly prices.
 (c) Asset  coverage is calculated  by combining all series of preferred  stock.
 (d) See Note 2 to Financial Statements (Swap Agreements).
 (e) The ratios do not include a reduction of expenses for custodian fee credits
     on cash balances  maintained  with the custodian.  For the six months ended
     June 30, 2005, the effect of the custodian fee credits was minimal.
 (f) Annualized
 (g) Amounts are subject to change and recharacterization at fiscal year end.

                 See accompanying notes to financial statements.

                                       18



             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

           BOARD CONSIDERATION AND RE-APPROVAL OF MANAGEMENT AGREEMENT

At its meeting on February  16, 2005,  the Board of  Directors  ("Board") of the
Fund approved the  continuation  of the investment  advisory  agreement with the
Adviser for the Fund on the basis of the  recommendation  by the directors  (the
"independent  directors")  who are not  "interested  persons"  of the Fund.  The
following  paragraphs  summarize the material information and factors considered
by the  independent  directors  as well as their  conclusions  relative  to such
factors.

NATURE,  EXTENT AND QUALITY OF SERVICES.  The independent  directors  considered
information  regarding the Adviser's portfolio manager, the depth of the analyst
pool  available  to  the  Adviser  and  the  portfolio  manager,  the  scope  of
supervisory,  administrative,  shareholder  and  other  services  supervised  or
provided by the Adviser and the absence of significant service problems reported
to the Board. The independent directors noted the experience,  length of service
and reputation of the portfolio manager.

INVESTMENT PERFORMANCE. The independent directors reviewed the short, medium and
long-term  performance  of the Fund  since  inception  against  a peer  group of
convertible  securities and  income/preferred  stock closed-end funds and equity
closed-end  funds.  The directors noted that the Fund's  performance was poor in
relation  to  its  peer  group  although   understandable  in  relation  to  the
conservative position taken by the Fund.

PROFITABILITY.  The independent  directors  reviewed  summary data regarding the
profitability of the Fund to the Adviser.

ECONOMIES OF SCALE.  The independent  directors  discussed the major elements of
the Adviser's cost structure and the relationship of those elements to potential
economies  of  scale.  The  independent  directors  noted  that the Fund  needed
significantly  more assets  before  economies  of scale could be  realized.  The
independent  directors  agreed that the Adviser  should  gather and provide them
with information  regarding  possible ways of measuring  potential  economies of
scale so that they  would be in a position  to review  this  potential  issue in
greater detail if the Fund grew substantially.

SHARING  OF  ECONOMIES  OF  SCALE.  The  independent  directors  noted  that the
investment  management  fee schedule for the Fund does not take into account any
potential  economies  of scale  that may  develop  or any  losses or  diminished
profitability to the Adviser in prior years.

SERVICE AND COST  COMPARISONS.  The independent  directors  compared the expense
ratios of the  investment  management  fee, other expenses and total expenses of
the Fund to  similar  expense  ratios  of the  peer  group  of  convertible  and
income/preferred  stock closed-end funds and noted that the Adviser's management
fee includes  substantially all  administrative  services of the Fund as well as
investment advisory services of the Adviser. The directors noted that the Fund's
expense  ratios were above average and the Fund's size was below average  within
this group.  The  directors  did not compare the  management  fee to the fee for
other types of accounts managed by an affiliated adviser.

CONCLUSIONS.  The independent  directors  concluded that the Fund enjoyed highly
experienced  portfolio  management  services,  good  ancillary  services  and  a
marginal  performance record. The independent  directors also concluded that the
Fund's  expense  ratios were  reasonable  in light of the Fund's size,  and that
economies of scale were not a significant factor in their thinking at this time.
The directors did not view the potential  profitability of ancillary services as
material to their decision.  On the basis of the foregoing and without assigning
particular weight to any single conclusion, the independent directors determined
to recommend  continuation  of the investment  management  agreement to the full
Board of Directors.


                                       19



                         AUTOMATIC DIVIDEND REINVESTMENT
                        AND VOLUNTARY CASH PURCHASE PLANS

ENROLLMENT IN THE PLAN

      It is the policy of The Gabelli  Convertible  and Income  Securities  Fund
Inc.   ("Fund")  to   automatically   reinvest   dividends   payable  to  common
shareholders.   As  a  "registered"   shareholder  you  automatically  become  a
participant in the Fund's Automatic Dividend Reinvestment Plan (the "Plan"). The
Plan authorizes the Fund to issue shares to participants upon an income dividend
or a capital gains distribution  regardless of whether the shares are trading at
a discount or a premium to net asset value.  All  distributions  to shareholders
whose shares are registered in their own names will be automatically  reinvested
pursuant to the Plan in additional  shares of the Fund.  Plan  participants  may
send their stock  certificates  to EquiServe Trust Company  ("EquiServe")  to be
held in their dividend reinvestment account.  Registered shareholders wishing to
receive their distribution in cash must submit this request in writing to:

             The Gabelli Convertible and Income Securities Fund Inc.
                                  c/o EquiServe
                                 P.O. Box 43010
                            Providence, RI 02940-3010

      Shareholders  requesting this cash election must include the shareholder's
name and  address as they  appear on the share  certificate.  Shareholders  with
additional questions regarding the Plan may contact EquiServe at (800) 336-6983.

      Shareholders wishing to liquidate reinvested shares held at EquiServe must
do so in  writing  or by  telephone.  Please  submit  your  request to the above
mentioned  address  or  telephone  number.  Include in your  request  your name,
address  and  account  number.  The  cost  to  liquidate  shares  is  $2.50  per
transaction as well as the brokerage commission incurred.  Brokerage charges are
expected to be less than the usual brokerage charge for such transactions.

      If your  shares  are held in the name of a broker,  bank or  nominee,  you
should contact such institution. If such institution is not participating in the
Plan,  your  account  will  be  credited  with  a cash  dividend.  In  order  to
participate in the Plan through such institution, it may be necessary for you to
have your shares taken out of "street name" and  re-registered in your own name.
Once  registered  in  your  own  name  your  dividends  will  be   automatically
reinvested. Certain brokers participate in the Plan. Shareholders holding shares
in "street name" at participating institutions will have dividends automatically
reinvested.  Shareholders  wishing  a cash  dividend  at such  institution  must
contact their broker to make this change.

      The number of shares of Common Stock  distributed to  participants  in the
Plan in lieu of cash dividends is determined in the following manner.  Under the
Plan,  whenever  the  market  price of the  Fund's  Common  Stock is equal to or
exceeds  net  asset  value  at the  time  shares  are  valued  for  purposes  of
determining  the number of shares  equivalent  to the cash  dividends or capital
gains distribution, participants are issued shares of Common Stock valued at the
greater of (i) the net asset value as most  recently  determined  or (ii) 95% of
the then current market price of the Fund's Common Stock.  The valuation date is
the  dividend or  distribution  payment  date or, if that date is not a New York
Stock Exchange  trading day, the next trading day. If the net asset value of the
Common  Stock at the time of  valuation  exceeds the market  price of the Common
Stock, participants will receive shares from the Fund valued at market price. If
the Fund should declare a dividend or capital gains distribution payable only in
cash,  EquiServe  will buy Common Stock in the open  market,  or on the New York
Stock  Exchange  or  elsewhere,  for the  participants'  accounts,  except  that
EquiServe will endeavor to terminate  purchases in the open market and cause the
Fund to issue shares at net asset value if,  following the  commencement of such
purchases,  the market  value of the Common  Stock  exceeds the then current net
asset value.


                                       21



      The automatic  reinvestment  of dividends and capital gains  distributions
will not  relieve  participants  of any  income tax which may be payable on such
distributions.  A participant in the Plan will be treated for Federal income tax
purposes  as  having  received,  on a  dividend  payment  date,  a  dividend  or
distribution in an amount equal to the cash the participant  could have received
instead of shares.

      The Fund  reserves the right to amend or terminate  the Plan as applied to
any  voluntary  cash  payments  made  and  any  dividend  or  distribution  paid
subsequent  to written  notice of the change  sent to the members of the Plan at
least 90 days before the record date for such dividend or distribution. The Plan
also may be amended or  terminated  by  EquiServe  on at least 90 days'  written
notice to participants in the Plan.

VOLUNTARY CASH PURCHASE PLAN

      The  Voluntary  Cash  Purchase  Plan  is  yet  another   vehicle  for  our
shareholders  to increase their  investment in the Fund. In order to participate
in the  Voluntary  Cash  Purchase  Plan,  shareholders  must have  their  shares
registered in their own name.

      Participants in the Voluntary Cash Purchase Plan have the option of making
additional  cash payments to EquiServe for  investments  in the Fund's shares at
the then  current  market  price.  Shareholders  may send an amount from $250 to
$10,000. EquiServe will use these funds to purchase shares in the open market on
or about the 1st and 15th of each month.  EquiServe will charge each shareholder
who  participates  $0.75,  plus a pro rata share of the  brokerage  commissions.
Brokerage  charges  for such  purchases  are  expected to be less than the usual
brokerage charge for such transactions.  It is suggested that any voluntary cash
payments be sent to EquiServe,  P.O. Box 43010,  Providence,  RI02940-3010  such
that  EquiServe  receives  such  payments   approximately  10  days  before  the
investment  date.  Funds not  received at least five days before the  investment
date shall be held for investment until the next purchase date. A payment may be
withdrawn  without  charge if notice is received by  EquiServe at least 48 hours
before such payment is to be invested.

      For  more  information   regarding  the  Dividend  Reinvestment  Plan  and
Voluntary Cash Purchase Plan,  brochures are available by calling (914) 921-5070
or by writing directly to the Fund.





                                       22



                             DIRECTORS AND OFFICERS
             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                    ONE CORPORATE CENTER, RYE, NY 10580-1422

DIRECTORS
Mario J. Gabelli, CFA
   CHAIRMAN & CHIEF EXECUTIVE OFFICER,
   GABELLI ASSET MANAGEMENT INC.

E. Val Cerutti
   CHIEF EXECUTIVE OFFICER,
   CERUTTI CONSULTANTS, INC.

Anthony J. Colavita
   ATTORNEY-AT-LAW,
   ANTHONY J. COLAVITA, P.C.

Dugald A. Fletcher
   PRESIDENT, FLETCHER & COMPANY, INC.

Karl Otto Pohl
   FORMER PRESIDENT, DEUTSCHE BUNDESBANK

Anthony R. Pustorino
   CERTIFIED PUBLIC ACCOUNTANT,
   PROFESSOR EMERITUS, PACE UNIVERSITY

Werner J. Roeder, MD
   MEDICAL DIRECTOR,
   LAWRENCE HOSPITAL

Anthonie C. van Ekris
   MANAGING DIRECTOR,
   BALMAC INTERNATIONAL, INC.

Salvatore J. Zizza
   CHAIRMAN, HALLMARK ELECTRICAL SUPPLIES CORP.


OFFICERS
Bruce N. Alpert
   PRESIDENT & TREASURER

Peter D. Goldstein
   CHIEF COMPLIANCE OFFICER

Laurissa M. Martire
   VICE PRESIDENT AND OMBUDSMAN

James E. McKee
   SECRETARY

A. Hartswell Woodson, III
   ASSOCIATE PORTFOLIO MANAGER

INVESTMENT ADVISER
Gabelli Funds, LLC
One Corporate Center
Rye, New York 10580-1422

CUSTODIAN
State Street Bank and Trust Company

COUNSEL
Skadden, Arps, Slate, Meagher & Flom LLP

TRANSFER AGENT AND REGISTRAR
EquiServe Trust Company

STOCK EXCHANGE LISTING
                             Common       6.00% Preferred
                           ----------     ---------------
NYSE-Symbol:                   GCV           GCV Pr B
Shares Outstanding:        11,866,695         990,800

The Net Asset Value appears in the Publicly Traded Funds column, under the
heading "Convertible Securities Funds," in Sunday's The New York Times and in
Monday's The Wall Street Journal. It is also listed in Barron's Mutual
Funds/Closed End Funds section under the heading "Convertible Securities Funds."

The Net Asset Value may be obtained each day by calling (914) 921-5071.



--------------------------------------------------------------------------------
For   general   information   about  the   Gabelli   Funds,   call   800-GABELLI
(800-422-3554),  fax us at 914-921-5118,  visit Gabelli Funds' Internet homepage
at: WWW.GABELLI.COM or e-mail us at: closedend@gabelli.com
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Notice  is hereby  given in  accordance  with  Section  23(c) of the  Investment
Company  Act of 1940,  as  amended,  that The  Gabelli  Convertible  and  Income
Securities Fund may from time to time purchase shares of its common stock in the
open market when The Gabelli  Convertible and Income  Securities Fund shares are
trading at a discount of 10% or more from the net asset value of the shares. The
Gabelli  Convertible  and Income  Securities  Fund may also,  from time to time,
purchase  shares of its Cumulative  Preferred  Stock in the open market when the
shares are trading at a discount to the Liquidation Value of $25.00.
--------------------------------------------------------------------------------



THE GABELLI CONVERTIBLE AND
INCOME SECURITIES FUND INC.
ONE CORPORATE CENTER
RYE, NY 10580-1422
(914) 921-5070
WWW.GABELLI.COM





                                                              SEMI-ANNUAL REPORT
                                                              JUNE 30, 2005





                                                                    GCV-SA-Q2/05



ITEM 2. CODE OF ETHICS.

Not applicable.


ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable.


ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable.


ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.


ITEM 6. SCHEDULE OF INVESTMENTS

Schedule of Investments in securities of  unaffiliated  issuers as of the close
of the reporting period is included as part of the report to shareholders filed
under Item 1 of this form.


ITEM 7.  DISCLOSURE  OF PROXY VOTING  POLICIES  AND  PROCEDURES  FOR  CLOSED-END
         MANAGEMENT INVESTMENT COMPANIES.

Not applicable.


ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not yet applicable.



ITEM 9.  PURCHASES OF EQUITY  SECURITIES  BY CLOSED-END  MANAGEMENT  INVESTMENT
COMPANY AND AFFILIATED PURCHASERS.

                   REGISTRANT PURCHASES OF EQUITY SECURITIES




=============================================================================================================================
                                                                (C) TOTAL NUMBER OF          (D) MAXIMUM NUMBER (OR
                                                                  SHARES (OR UNITS)        APPROXIMATE DOLLAR VALUE) OF
            (A) TOTAL  NUMBER OF                                PURCHASED AS PART OF        SHARES (OR UNITS) THAT MAY
              SHARES (OR UNITS)      (B) AVERAGE PRICE PAID      PUBLICLY ANNOUNCED         YET BE PURCHASED UNDER THE
 PERIOD          PURCHASED             PER SHARE (OR UNIT)        PLANS OR PROGRAMS              PLANS OR PROGRAMS
=============================================================================================================================
                                                                                      
Month #1     Common - N/A              Common - N/A               Common - N/A               Common - 11,717,040
01/01/05
through      Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A   Preferred Series B - 990,800
01/31/05
=============================================================================================================================
Month #2     Common - N/A              Common - N/A               Common - N/A               Common - 11,717,040
02/01/05
through      Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A   Preferred Series B - 990,800
02/28/05
=============================================================================================================================
Month #3     Common - N/A              Common - N/A               Common - N/A               Common - 11,793,001
03/01/05
through      Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A   Preferred Series B - 990,800
03/31/05
=============================================================================================================================
Month #4     Common - N/A              Common - N/A               Common - N/A               Common - 11,793,001
04/01/05
through      Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A   Preferred Series B - 990,800
04/30/05
=============================================================================================================================
Month #5     Common - N/A              Common - N/A               Common - N/A               Common - 11,793,001
05/01/05
through      Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A   Preferred Series B - 990,800
05/31/05
=============================================================================================================================
Month #6     Common - N/A              Common - N/A               Common - N/A               Common - 11,866,695
06/01/05
through      Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A   Preferred Series B - 990,800
06/30/05
=============================================================================================================================
Total        Common - N/A              Common - N/A               Common - N/A               N/A

             Preferred Series B - N/A  Preferred Series B - N/A   Preferred Series B - N/A
=============================================================================================================================




Footnote  columns  (c)  and  (d) of the  table,  by  disclosing  the  following
information in the aggregate for all plans or programs publicly announced:

a.   The date each plan or program was  announced - The notice of the potential
     repurchase of common and preferred  shares occurs  quarterly in the Fund's
     quarterly  report  in  accordance  with  Section  23(c) of the  Investment
     Company Act of 1940, as amended.

b.   The dollar  amount (or share or unit amount)  approved - Any or all common
     shares  outstanding  may be repurchased  when the Fund's common shares are
     trading  at a  discount  of 10% or more  from the net  asset  value of the
     shares.

     Any or all preferred shares outstanding may be repurchased when the Fund's
     preferred  shares are  trading at a discount to the  liquidation  value of
     $25.00.

c.   The  expiration  date  (if  any) of  each  plan or  program  - The  Fund's
     repurchase plans are ongoing.

d.   Each plan or program  that has  expired  during the period  covered by the
     table - The Fund's repurchase plans are ongoing.

e.   Each plan or program the registrant  has determined to terminate  prior to
     expiration,  or under which the registrant does not intend to make further
     purchases. - The Fund's repurchase plans are ongoing.


ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There have been no material changes to the procedures by which the shareholders
may recommend  nominees to the  registrant's  Board of  Directors,  where those
changes were  implemented  after the  registrant  last  provided  disclosure in
response to the  requirements  of Item  7(d)(2)(ii)(G)  of Schedule 14A (17 CFR
240.14a-101), or this Item.


ITEM 11. CONTROLS AND PROCEDURES.

     (a)  The  registrant's   principal   executive  and  principal   financial
          officers,  or persons performing  similar  functions,  have concluded
          that the registrant's  disclosure controls and procedures (as defined
          in Rule 30a-3(c) under the Investment Company Act of 1940, as amended
          (the "1940 Act") (17 CFR 270.30a-3(c)))  are effective,  as of a date
          within 90 days of the filing  date of the report  that  includes  the
          disclosure  required by this paragraph,  based on their evaluation of
          these  controls and  procedures  required by Rule 30a-3(b)  under the
          1940 Act (17 CFR 270.30a-3(b)) and Rules 13a-15(b) or 15d-15(b) under
          the Securities Exchange Act of 1934, as amended (17 CFR 240.13a-15(b)
          or 240.15d-15(b)).


     (b)  There were no  changes  in the  registrant's  internal  control  over
          financial  reporting (as defined in Rule 30a-3(d)  under the 1940 Act
          (17 CFR  270.30a-3(d))  that occurred during the registrant's  second
          fiscal  quarter  of the  period  covered  by  this  report  that  has
          materially  affected,  or is reasonably likely to materially  affect,
          the registrant's internal control over financial reporting.



ITEM 12. EXHIBITS.

     (a)(1)   Not applicable.


     (a)(2)   Certifications  pursuant to Rule  30a-2(a)  under the 1940 Act and
              Section 302 of the Sarbanes-Oxley Act of 2002 are attached hereto.

     (a)(3)   Not applicable.


     (b)      Certifications  pursuant to Rule  30a-2(b)  under the 1940 Act and
              Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto.



                                   SIGNATURES

Pursuant to the  requirements  of the  Securities  Exchange Act of 1934 and the
Investment  Company Act of 1940,  the registrant has duly caused this report to
be signed on its behalf by the undersigned, thereunto duly authorized.

(registrant) The Gabelli Convertible and Income Securities Fund Inc.
             ---------------------------------------------------------------


By (Signature and Title)*  /s/ Bruce N. Alpert
                         -------------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer


Date     September 7, 2005
    ----------------------------------------------------------------------------


Pursuant to the  requirements  of the  Securities  Exchange Act of 1934 and the
Investment  Company  Act of 1940,  this  report  has been  signed  below by the
following  persons on behalf of the registrant and in the capacities and on the
dates indicated.


By (Signature and Title)*  /s/ Bruce N. Alpert
                         -------------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer &
                           Principal Financial Officer

Date     September 7, 2005
    ----------------------------------------------------------------------------



* Print the name and title of each signing officer under his or her signature.