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

                                  FORM 6-K 

                      REPORT OF FOREIGN PRIVATE ISSUER
                      PURSUANT TO RULE 13a-16 OR 15d-16
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934 

                          For the month of November, 2005 

                         Commission File Number 0-21392 

                            AMARIN CORPORATION PLC 
               (Translation of registrant's name into English) 

                              7 Curzon Street
                              London W1J 5HG
                                 England
                   (Address of principal executive offices) 

     Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F: 

               Form 20-F [X]       Form 40-F [  ]

     Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(1):

               Yes  [  ]            No  [X]

     Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of
a Form 6-K if submitted solely to provide an attached annual report to security
holders.

     Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(7): 

               Yes  [  ]            No  [X]

     Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of
a Form 6-K if submitted to furnish a report or other document that the
registrant foreign private issuer must furnish and make public under the laws of
the jurisdiction in which the registrant is incorporated, domiciled or legally
organized (the registrant's "home country"), or under the rules of the home
country exchange on which the registrant's securities are traded, as long as the
report or other document is not a press release, is not required to be and has
not been distributed to the registrant's security holders, and, if discussing a
material event, has already been the subject of a Form 6-K submission or other
Commission filing on EDGAR.

     Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.


                  Yes [  ]       No [X]

     If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b):


   This report on Form 6-K is hereby incorporated by reference in (a) the
registration statement on Form F-3 (Registration No. 333-104748) of Amarin
Corporation plc and in the prospectus contained therein, (b) the registration
statement on Form F-3 (Registration No. 333-13200) of Amarin Corporation plc and
in the prospectus contained therein, (c) the registration statement on Form
F-3 (Registration No. 333-12642) and in the prospectus contained therein,
(d) the registration statement on Form F-3 (Registration No. 333-121431) of
Amarin Corporation plc and in the prospectus contained therein and (e) the
registration statement on Form F-3 (Registration No. 333-121760) of Amarin
Corporation plc and in the prospectus contained therein, and this report on
Form 6-K shall be deemed a part of each such registration statement from the
date on which this report is filed, to the extent not superseded by documents
or reports subsequently filed or furnished by Amarin Corporation plc under the
Securities Act of 1933 or the Securities Exchange Act of 1934.




                            EXHIBIT INDEX


Exhibit
Number                     Description
-------                    ------------

  99.1                     Press Release: Amarin announces appointment
                           of Tom Maher as General Counsel




                               SIGNATURES 

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


                                    AMARIN CORPORATION PLC

                                    By: /s/ RICHARD A.B. STEWART
                                    Name: Richard A.B. Stewart
                                    Title: Chief Executive Officer


Date: November 4, 2005