Juvenile Aplysia extraordinaria from Sydney

August 16, 2006
From: Donald Miles


Just wondering if someone could identify this sea slug for us. It was found at Long Reef Marine Reserve in a large tidal rock pool.

Locality: Long Reef Rock Platform, Collaroy, 0 - 1 metre, NSW, Australia, Pacific Ocean, 8 August 2006, Tidal rock pool. Length: 50mm. Photographer: Don Miles.

I have included some photos taken through a plastic specimen container showing the top and underside of the slug.

Don Miles


Miles. D.W., 2006 (Aug 16) Juvenile Aplysia extraordinaria from Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17435

Dear Don,
From the general shape I would suspect that this is a juvenile of the large sea hare, Aplysia extraordinaria. They are normally more brown in colour, but it is possible that juveniles, if feeding on red algae, would have a pinkish tinge. Unfortunately we know very little about the life history of this species.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Aug 16). Comment on Juvenile Aplysia extraordinaria from Sydney by Donald Miles. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17435

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