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Egg case of Port Jackson shark. Egg case found on Vincentia beach, Jervis Bay Territory, Australia.

Egg cases when found washed up on the beach are sometimes known as a Mermaid's purse.

The screw-like helical flanges help the mother shark to secure the egg within rock crevices.


User Golden Wattle on en.wikipedia

Public domain This image has been released into the public domain by its author, AYArktos. This applies worldwide.

In some countries this may not be legally possible; if so:
AYArktos grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Originally from en.wikipedia; description page is (was) here * 09:54, 24 April 2005 [[:en:User:Golden Wattle|Golden Wattle]] 2048×1536 (642,523 bytes) <span class="comment">(Shark's egg - Port Jackson Shark. Egg case found on Vincentia beach, [[:en:Jervis Bay Territory]] {{PD-user|AYArktos}})</span>

The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
  • Shark
  • Mermaid's purse
  • User:AYArktos/images


This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified image.