Risbecia pulchella from the Red Sea

March 6, 2006
From: Kamal El Tawil

Hi Bill:
Is this a Risbecia ghardaqana? it's about 4cms and it was solitary or could it be a juvenile Risbecia pulchella (beautiful risbecia) ?

Locality: Elphinstone Reef, Marsa Alam, Egypt. Red Sea. Depth: 10 metres. Length: 4 cms. June 24th, 2005. Photographer: Kamal el Tawil

kind regards
Kamal

kt@tedata.net.eg

El Tawil, K., 2006 (Mar 6) Risbecia pulchella from the Red Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14651

Dear Kamal,
As I discuss in an earlier message [#9625] there are three yellow-spotted chromodorids in the Red Sea and at least two of them - the species of Risbecia - are difficult to tell apart, mainly because we are having difficulty in rediscovering Risbecia ghardaqana. However there is one feature which I haven't considered much in the past, and that is the number of gills. From the many gills in your specimen, I guess it is R. pulchella, both R. ghardaqana and Chromodoris annulata are said to have only 9-12 gills, conpared with the 20-30 in R. pulchella.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Mar 6). Comment on Risbecia pulchella from the Red Sea by Kamal El Tawil. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14651

Factsheet

Risbecia pulchella

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