Colpodaspis pusilla from Mediterranean

May 15, 2003
From: Eddie Hardy

This shell is now recorded in Microconchas de la Bahía de San Sebastián by Felix Azpilicueta Viguera adding credibility to the report of it in the Mediterranean.
Eddie Hardy

Hardy, E., 2003 (May 15) Colpodaspis pusilla from Mediterranean. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Eddie,
Can you give me details about Viguera's book? I'm afraid I don't have a team of slaves to do the background work. I have no doubt that Jean-Pierre Bielecki's photo is from the Mediterranean, my doubt is whether I have correctly identified it as Colpodaspis pusilla since that species has only been recorded previously much further north. The animal certainly looks the same. I am not sure whether a shell can help, as at present I don't think we know enough about the differences in shell shape between species to confidently identify them from shells alone. The only sure way is to compare living animals, their anatomy and their shells. If anyone has found this species south of the British Isles, or knows of records, it would be interesting to hear about it
Best wishes
Bill Rudman

Rudman, W.B., 2003 (May 15). Comment on Colpodaspis pusilla from Mediterranean by Eddie Hardy. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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