Ceratosoma with Periclimenes imperator
September 17, 2005
From: Corby James
This has been identified by some one as Ceratosoma tenue with Periclimenes imperator and I would like confirmation please.
Locality: Lembeh Straights, N. Sulawesi, Indonesia. Depth: 80 ft. Length: approx. 4-5 cm. 22 August 2005. Sandy bottom covered in soft corals. Photographer: Corby James
Thanks
Corby James
cjames@austin.rr.com
James, C., 2005 (Sep 17) Ceratosoma with Periclimenes imperator. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14726Dear Corby,
The commensal shrimp is correctly identified, but I am not so sure with the Ceratosoma. Ceratosoma tenue has a lobe on each side about halfway between the rhinophores and the large mantle lobe alongside the gills. Ceratosoma gracillimum lacks such a lobe but also lacks any sign of a ridge along each side to mark the mantle edge. I think ther is a ridge in your specimen which would suggest it is C. trilobatum. Usually in C. trilobatum, that ridge is edged with the same colour as the lobe around the head and on each side of the gills, but there are specimens which don't have this colour. It's hard to be sure from your photo, but I am pretty sure it is C. trilobatum.
Best wishes,
Bill Rudman
Related messages
-
Re: Another goby on nudibranch
From: Andy Eastwood, February 11, 2009 -
Amphipod crustacean mimic (Southern California)
From: Matt Segal, February 4, 2006 -
Commensalism in Californian nudibranchs
From: James Lyle & Leslie Harris, July 30, 2005 -
Amphipod commensal on Tritonia festiva
From: James Lyle & Leslie Harris, July 30, 2005 -
Another commensal scaleworm
From: James Lyle & Leslie Harris, July 30, 2005 -
Re: Another goby on nudibranch
From: Bill Rudman, July 11, 2005 -
Another goby on nudibranch
From: Jerry Allen, July 5, 2005 -
Commensal fish on Ceratosoma trilobatum
From: John Weinberg, June 27, 2005 -
Chromodoris coi with copepod
From: Fredy Brauchli, March 22, 2004 -
Mystery mark on Risbecia pulchella
From: Stephanie Maleady, January 25, 2004 -
It's a puzzle
From: Mary Jane Adams, May 10, 2002 -
Symbiotic stress
From: Ali, April 10, 2002 -
Ceratosoma trilobatum with commensal shrimp
From: Mary Jane Adams, September 21, 2001 -
Mutualism and symbiosis
From: Lindsay Jennings, January 24, 2001 -
Examples of Symbiosis
From: Sutha, August 23, 2000 -
Commensalistic Symbiosis
From: Josh Williamsen, March 24, 2000 -
Examples of endoecism
From: Sonia, December 9, 1999 -
Nudibranch with commensal shrimp
From: Erik Schloegl, November 14, 1999 -
Slugs and Microbes
From: Daniel Vega Mendoza, June 5, 1999 -
Information about commensalism
From: Kara Hailey, February 20, 1999 -
Commensalism
From: Kerry, January 18, 1999 -
Parasite and Mutualistic relationships
From: Tammy Pearson, November 21, 1998 -
"Commensalistic symbiosis"
From: Laura, October 30, 1998 -
symbiosis
From: unidentified enquirer, October 25, 1998 -
Symbiosis and commensalism
From: , March 28, 1998