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/14651Dear 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
Related messages
-
Re: Risbecia pulchella at rest
From: Ron Velarde, February 24, 2009 -
Risbecia pulchella at rest
From: Valda Fraser, February 16, 2009 -
Risbecia pulchella - Stretching ?
From: Kamal El Tawil, June 6, 2008 -
Trailing Risbecia pulchella from the Red sea
From: Kamal El Tawil, April 9, 2008 -
More Risbecia ghardaqana from Thailand?
From: K. Kalani Patterson, February 5, 2008 -
Re: Risbecia ghardaqana from Hurghada, Egypt
From: Yahia Mokhtar, October 30, 2007 -
Risbecia pulchella from the Red Sea
From: Larry Dupriest, October 30, 2007 -
Risbecia ghardaqana ? from Muscat, Oman
From: Yahia Mokhtar, September 21, 2007 -
Mating Risbecia pulchella from Tofo, Mozambique
From: Natasja Vandeperre, August 24, 2007 -
Risbecia ghardaqana? from Indonesia
From: Grace Wong, August 18, 2007 -
Re: Rispecia ghardaqana? from South Africa
From: Colin Ogden, May 9, 2007 -
Risbecia ghardaqana? from the Red Sea
From: Kamal El Tawil, July 24, 2006 -
Periclimenes imperator on mating Risbecia pulchella
From: Matan Ninio, August 3, 2005 -
Risbecia pulchella from Reunion Island
From: Stefaan Dewulf, February 1, 2005 -
Risbecia pulchella from Thailand
From: Spencer Huang, December 8, 2003 -
Risbecia pulchella from Red Sea
From: Leo de Pee, May 22, 2003 -
Risbecia pulchella from the Red Sea
From: Oren Lederman, May 17, 2003 -
Chromodoris hintuanensis or R. pulchella?
From: Asther M. Lau, May 10, 2003 -
Risbecia ghardaqana from Andaman Sea
From: Mary Jane Adams, April 8, 2003 -
Risbecia pulchella from the Red Sea
From: Ilan Ben-Tov , April 8, 2003 -
Risbecia pulchella from the Andaman Sea
From: Mary Jane Adams, April 8, 2003 -
Re: Risbecia ghardaqana trailing
From: Erwin Koehler, April 8, 2003 -
Risbecia ghardaqana trailing
From: Sarah Heaney, March 29, 2003 -
Risbecia ghardaqana - 'trailing' behaviour
From: Larry Dupriest, March 2, 2003 -
Risbecia ghardaqana from sthn Thailand
From: Priscilla Yeo, January 25, 2003 -
Re: Risbecia pulchella vs. ghardaqana
From: Ron Velarde, April 6, 2002 -
Risbecia pulchella or ghardaqana (2)
From: Erwin Koehler, April 5, 2002 -
Risbecia pulchella vs. ghardaqana
From: Erwin Koehler, April 5, 2002 -
Risbecia pulchella from Bali
From: Stuart Hutchison, April 4, 2002 -
Risbecia ghardaqana from the Red Sea
From: Jim Anderson, January 31, 2002 -
Is this Risbecia ghardaqana?
From: Doug Segar, March 14, 2001 -
Risbecia pulchella - range extension
From: Michael D. Miller, March 14, 2001 -
Risbecia pulchella without gills
From: Valda Fraser, January 12, 2001 -
Risbecia pulchella from Oman
From: Gordon T. Smith, October 30, 2000 -
Risbecia from the Seychelles
From: Dick Ballendux, November 12, 1999 -
Risbecia pulchella from Thailand
From: Bill Rudman, April 12, 1999 -
'Trailing' in Risbecia pulchella
From: Bill Rudman, April 11, 1999 -
'Trailing' in Risbecia ghardaqana
From: Erwin Koehler, April 9, 1999