Halgerda formosa identity

January 7, 2004
From: Shireen Fahey

Hi Bill,
Terry and I took a look at Marina's recent message regarding her Mayotte collections along with the Halgerda photo. We're pretty sure that the photo is of Halgerda formosa and we'll certainly dissect it when we receive it from Marina. We've already dissected specimens with the spots as shown in Marina's photo, and they are H. formosa.

Meanwhile, Terry wants to clarify his previous message (January 30, 2003) regarding H. formosa. He didn't mean that the animal pictured is necessarily a new species altogether. His intuition told him that all the specimens (from Madagascar and Mauritius) may represent the same species (not necessarily a new species). We'll have to dissect the specimens with no spots next.

We'll keep you posted after the dissections are completed.

All the best,
Shireen

sfahey@calacademy.org

Fahey, S.J., 2004 (Jan 7) Halgerda formosa identity. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11528

Dear Shireen,
I'm sorry I didn't post your message sooner but I have been overwhelmed with work in the last few months. Since your message arrived I have received a number of relevant contributions which I hesitate to suggest resolve the puzzle surrounding those problematic specimens of 'H. formosa' such as Marina's. I think they are H. wasinensis. I am posting 2 messages today discussing variation in H. wasinensis and H. formosa [message 1, message 2]. I would appreciate your comments. As a New Year's surprise for you. all today's messages concern your favourite genus - Halgerda.

Best wishes
Bill Rudman

Rudman, W.B., 2004 (Jan 7). Comment on Halgerda formosa identity by Shireen Fahey. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11528

Factsheet

Halgerda wasinensis

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