Halgerda toliara? from Mayotte (1)

April 15, 2003
From: Marina Poddubetskaia


Dear Bill,
Here are some photos from Mayotte Island, Indian Ocean taken by Isabelle Ruffin [isabelle.ruffin@wanadoo.fr].

I can’t identify this Halgerda. Have you any idea which species is it ? It makes me think a little about Halgerda toliara.

Date: March 29, 2003
Site: Banc Jumeaux
Depth: 18m
Size: about 30mm
Photos: Isabelle Ruffin - www.biologie-marine.com

Thank you in advance for your help.
Best wishes,
Marina (and Isabelle).

nembro@nembro.info

Poddubetskaia, M., 2003 (Apr 15) Halgerda toliara? from Mayotte (1). [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9550

Dear Marina & Isabelle,
This certainly looks like it could be a variant of H. toliara. I suspect we will only be able to sort this out when more material is available from throughout the Indian Ocean. Your animals differ in having a single yellow ridge down the midline, but they do agree in having the fine pustules around the mantle edge. Fahey & Gosliner describe them as yellowish pustules but if Valda Fraser's animal is correctly identified, it seems the pustules may be translucent and can appear white or yellowish. Perhaps Terry Gosliner or Shireen Fahey can give us their opinion. I am not sure if H. toliara has such a raised yellow gill pocket.

I have posted a couple more of your photos of this animal in a separate message.
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Apr 15). Comment on Halgerda toliara? from Mayotte (1) by Marina Poddubetskaia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9550

Factsheet

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