Haminoea cymbalum from the Cook Islands

May 26, 2006
From: Marcus Coltro

I collected these small and beautiful Haloa (I hope I got to the right genus) in Aitutaki, Cook Islands.

I found several on a coral head at 1 meter - and although there were several coral heads containing exactly the same algae on it I only found these shells on one place only.
Any suggestions?

Locality: Aitutaki, 1 meter, Cook Islands, South Pacific, 07 April 2006, On coral head feeding on algae. Length: 6 to 8 mm. Photographer: Marcus Coltro.

Marcus Coltro.

shells@femorale.com.br

Coltro, M.V., 2006 (May 26) Haminoea cymbalum from the Cook Islands. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16664

Dear Marcus,
Many years ago (Rudman, 1971) I suggested that there were no anatomical grounds to separate the genus Haloa from Haminoea. I have identified this animal as Haminoea cymbalum but Clay Carlson & Patty Jo Hoff [see message #709 ] suggest that that species is unidentifiable and we should use the name Haminoea simillima.

Why you will sometimes find opisthobranchs in one spot and not in an equally desirable spot elsewhere, is one of lifes' little mysteries. If I could have a dollar for everytime I have said "this is just the place to find species x" and found nothing, I would be a very rich man.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (May 26). Comment on Haminoea cymbalum from the Cook Islands by Marcus Coltro. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16664

Factsheet

Haminoea cymbalum

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