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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN ISSUER
Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934
For the month of December 2005
Commission File Number 000-51122
pSivida Limited
(Translation of registrant’s name into English)
Level 12 BGC Centre
28 The Esplanade
Perth WA 6000
(Address of principal executive offices)
(Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F).
Form 20-F þ Form 40-F o
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):
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):
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 o No þ
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- ___.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant, pSivida Limited, has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Date: December 22, 2005

| pSivida Limited |
| By: | /s/Aaron Finlay |
|  | Aaron Finlay |
|  | Chief Financial Officer and Company Secretary |

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EXHIBIT INDEX

EXHIBIT 99.1: |  | Supplemental Disclosure of pSivida Limited related to its Information Statement, dated December 22, 2005