Marine pulmonate slug from India
April 4, 2007
From: Doug Eernisse
A biologist from India has requested IDs of these two slug species. I work on chitons.
Locality: near Gujarat, India, Arabian Sea, 11 March 2007, intertidal. Approx 65 mm long. Photographer: Dr. Rahul Kundu.
Thanks,
Doug Eernisse.
deernisse@fullerton.edu
Eernisse, D.J., 2007 (Apr 4) Marine pulmonate slug from India. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19791
Dear Doug,
I remember finding these myself in the Gulf of Kutch, Gujarat, 35 years ago. This is a remarkable marine pulmonate slug, which looks very much like a nudibranch. The gills on its back certainly look quite dorid-like, but although in this photo they seem to be restricted to the posterior end of the animal, the tubercles all over the dorsum have similar 'gills' inside, just waiting to evert when they are covered with sea water.
Its name is Onchidium verruculatum. Have a look at the Marine Pulmonate Fact Sheet for more information, and at the messages attached to that page, where there are more photos and information. What I find interesting in these photos is just how similar the gills are in shape and size to the matted Valonia-like green algae growing on the rocks alongside. In the close-up photo alongside, the gills are on the left and the algae is on the right. This Onchidium is very difficult to see at low tide, when it looks just like a bit of the limestone rock platform, but its seems that even when covered at high tide, with its gills out, it is almost invisble as well.
Best wishes,
Bill Rudman
Related messages
-
Limpet-like slug from New South Wales
From: Sam Rodely, February 22, 2010 -
Re: Onchidella celtica from Channel Ids
From: Frans Janssens, July 22, 2008 -
Re: Onchidella celtica from Channel Ids
From: Jean-Yves Monnat, September 22, 2007 -
Pulmonate slugs from the Caribbean
From: Phillip Gillette, July 4, 2007 -
Onchidium from the Arabian Sea
From: Bhavik Patel, November 16, 2006 -
Korean slug in intertidal zone
From: William Churchill, September 6, 2006 -
Sea slug from Tioman Island, Malaysia
From: Andrew Lee, February 16, 2004 -
Re: Onchidiid from Thailand
From: Kevin J. Caley, April 28, 2003 -
Dendrodoris? from Siladen, Indonesia
From: Ginette Allard, December 3, 2002 -
Re: Onchidella celtica from Channel Ids
From: Yves Muller, February 18, 2002 -
Re: Onchidella 'eggs'
From: Peter Wirtz, February 17, 2002 -
Onchidella celtica from Channel Ids
From: Nick Jouault, February 11, 2002 -
Giant Onchidium from South Africa
From: Valda Fraser, May 8, 2001 -
Pulmonate slug? from Maldives
From: Erwin Koehler, May 4, 2001 -
Onchidiid from Thailand
From: Sylvain Le Bris, March 17, 2001 -
Pulmonate Slugs from Philippines
From: Erwin Koehler, January 13, 1999 -
Photo of Onchidium
From: Stephanie A. Clark, January 13, 1999