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                                  EXHIBIT 10.4

                    FORM OF NEW YORK COMMUNITY BANCORP, INC.
                        STOCK OPTION ASSUMPTION AGREEMENT

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                        STOCK OPTION ASSUMPTION AGREEMENT

Dear [Optionee]:

         As you know, on October 31, 2003 (the "Closing Date"),  Roslyn Bancorp,
Inc. ("Roslyn") merged with and into New York Community Bancorp,  Inc. ("NYCB"),
a Delaware  corporation (the "Merger").  In the Merger, each holder of shares of
Roslyn  common  stock,  received  0.75 of a shares of NYCB common stock for each
share of Roslyn  common stock (the  "Exchange  Ratio").  On the Closing Date you
held one or more  outstanding  options to purchase shares of Roslyn common stock
granted to you under either the TR Financial  Corp.  1993 Incentive Stock Option
Plan, as amended and restated  ("1993  Plan"),  the Amended and Restated  Roslyn
Bancorp,  Inc.  1997  Stock-Based  Incentive  Plans ("1997 Plan") and the Roslyn
Bancorp,  Inc. 2001 Stock-Based Incentive Plan ("2001 Plan") and documented with
a Stock Option  Agreement(s)  and/or  Notice(s) of Grant of Stock Option and any
amendment(s) or waiver(s) thereto (collectively,  the "Option Agreement") issued
to you under the 1993 Plan,  the 1999 Plan or the 2001 Plan, as applicable  (the
"Roslyn  Options").  In  accordance  with the Merger,  on the Closing  Date NYCB
assumed all  obligations  of Roslyn  under the Roslyn  Options.  This  Agreement
evidences  the  assumption  of  the  Roslyn  Options,  including  the  necessary
adjustments to the Roslyn Options required by the Merger.

         Your  Roslyn  Options  immediately  before  and after the Merger are as
follows:

                OPTIONEE'S OUTSTANDING OPTIONS TO PURCHASE SHARES
                             OF ROSLYN BANCORP, INC.
                                  (PRE-MERGER)




                                                                                      

    Date of Grant           Name of Plan           Type of Option        Number of Options        Exercise Price
- --------------------  ---------------------    --------------------   ----------------------    -----------------








                OPTIONEE'S OUTSTANDING OPTIONS TO PURCHASE SHARES
                OF NEW YORK COMMUNITY BANCORP, INC. COMMON STOCK
                                  (POST-MERGER)




                                                                                      

    Date of Grant           Name of Plan           Type of Option        Number of Options        Exercise Price
- --------------------  ---------------------    --------------------   ----------------------    -----------------






The post-merger adjustments are based on the Exchange Ratio and are intended to:
(i) to  preserve,  on a per share  basis,  the ratio of  exercise  price to fair
market  value that  existed  immediately  prior to the  Merger;  and (ii) to the
extent  applicable by law, to retain incentive stock option ("ISO") status under
the Federal tax laws.

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         Unless the context otherwise requires, any references in the 1993 Plan,
1999 Plan or the 2001 Plan and the Option  Agreement (i) to the "Company" or the
"Corporation"  means NYCB,  (ii) to "Stock,"  "Common  Stock" or "Shares"  means
shares of NYCB common  stock,  (iii) to the "Board of  Directors" or the "Board"
means  the  Board of  Directors  of NYCB and (iv) to the  "Committee"  means the
Compensation  Committee of the NYCB Board of  Directors.  All  references in the
Option  Agreement  and the Plan relating to your status as an employee of Roslyn
will now refer to your  status as an  employee  of NYCB or any present or future
NYCB  subsidiary.  To the  extent the Option  Agreement  allowed  you to deliver
shares of Roslyn common stock as payment for the exercise price,  shares of NYCB
common stock may be delivered in payment of the adjusted exercise price, and the
period for which  such  shares  were held as Roslyn  common  stock  prior to the
Merger will be taken into account.

         The grant date,  vesting  commencement  date,  vesting schedule and the
expiration  date of your assumed  NYCB  Options  remain the same as set forth in
your  Option  Agreement,  but the  number  of  shares  subject  to each  vesting
installment has been adjusted to reflect the Exchange Ratio, as applicable.  All
other  provisions  which govern  either the exercise or the  termination  of the
assumed NYCB Option remain the same as set forth in your Option  Agreement,  and
the  provisions of the Option  Agreement  (except as expressly  modified by this
Agreement  and the  Merger)  will  govern and  control  your  rights  under this
Agreement to purchase  shares of NYCB common  stock.  Upon your  termination  of
employment  with NYCB you will have the limited  time period  specified  in your
Option  Agreement to exercise your assumed NYCB Option.  Incentive Stock Options
("ISO")  exercised later than 3 months following  termination of employment (for
reasons other than death and disability) will be treated as non-statutory  stock
options for tax purposes.  You  beneficiary or estate has one (1) year from your
death the exercise your ISOs.

         To exercise  your  assumed  NYCB  Option,  you must deliver to Victoria
Kalligeros  in the NYCB  Human  Resources  Department  (i) a  written  notice of
exercise  for the number of shares of NYCB  common  stock you want to  purchase,
(ii) the adjusted  exercise price, and (iii) all applicable  taxes. The exercise
notice and  payment  should be  delivered  to Ms.  Kalligeros  at the  following
address:

                        New York Community Bancorp, Inc.
                           Human Resources Department
                               615 Merrick Avenue
                            Westbury, New York 11590

         Nothing in this  Agreement or your Option  Agreement  interferes in any
way with your rights and NYCB's rights, which rights are expressly reserved,  to
terminate your  employment at any time for any reason.  Any future  options,  if
any,  you may  receive  from  NYCB  will be  governed  by the  terms of the NYCB
stock-based  incentive  plan,  and such terms may be different from the terms of
your assumed  NYCB  Options,  including,  but not limited to, the time period in
which you have to exercise vested options after your termination of employment.

         Please  sign and date this  Agreement  and  return it  promptly  to the
address listed above. If you have any questions regarding this Agreement or your
assumed _____________ Options, please contact ________________ at (___)___-____.




                                        ----------------------------------------



                                    By: ________________________________________

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                                 ACKNOWLEDGMENT

         The  undersigned  acknowledges  receipt of the  foregoing  Stock Option
Assumption  Agreement  and  understands  that all  rights and  liabilities  with
respect to each of his or her Roslyn  Options  hereby assumed by NYCB are as set
forth in the Option Agreement, the 1993 Plan, the 1999 Plan or the 2001 Plan, as
applicable, and such Stock Option Assumption Agreement.



Dated:____________________, 2003           _____________________________________
                                           [NAME], Optionee