Hypselodoris agassizii from Costa Rica

February 23, 2000
From: Erwin Koehler

Dear Bill,
This one was made by H.-H. Harms in Costa Rica, East Pacific Coast in April 1994, 13m depth.

I think it looks like Hypselodoris lapislazuli (Bertsch & Ferreira, 1974) in Debelius...

Erwin

Medslugs.Koehler@t-online.de

Koehler, E., 2000 (Feb 23) Hypselodoris agassizii from Costa Rica. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1945

Dear Erwin,
There are a group of similar looking east Pacific chromodorids and this photo does look a bit like H. lapislazuli. However my feeling is that it is a colour form of Hypselodoris agassizii. From published descriptions and Terry Gosliner's photo from Mexico on Mike Miller's site the animal in this photo does not have the distinct blue inner line at the border, or such bright yellow spots, but in general pattern it matches H. agassizii better than any of the other hypselodorids from that region. Other distinctive features are the translucent white gills with black tips and the break in the marginal coloured bands halfway along each side of the mantle.

Hopefully someone with a knowledge of that fauna can confirm this identification for me.
Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Feb 23). Comment on Hypselodoris agassizii from Costa Rica by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1945

Factsheet

Hypselodoris agassizii

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