Mermaids Purses

A short stroll on Vazon beach today where it was extremely windy and fantastically rough, provided a huge selection of Mermaids Purses.
They are actually the egg cases of certain types of fish from the shark family.
This LINK shows some details about Mermaids purses.
The Purses I found are 4 inches long so I think they are from the Greater Spotted Dogfish. Click HERE to meet him!