Unknown Opisthobranch from New Zealand

August 3, 2006
From: Angela Dinapoli

Dear Bill,

I found those two specimens during a collecting trip in New Zealand and I have no idea where they belong to. Could you please help me with the identification.

Locality: Upper photo:  Leigh, 1 m, North Island, New Zealand, South Pacific Ocean, 30 April 2006, Intertidal, on algae. Length: 2 mm. Lower photo: Pahia, North Island, New Zealand Depth: 1 m. Length: 3 mm. 22 May 2006. Intertidal, on algae. Photographer: Angela Dinapoli.

Best regards
Angela

a.dinapoli@bio.uni-frankfurt.de

Dinapoli, A., 2006 (Aug 3) Unknown Opisthobranch from New Zealand. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17305

Note added 23 November 2007: This is a species of Vorticeros - see message #21182.

Dear Angela,
Despite the slug-like look, I am pretty sure this is one of a group of tiny flatworms. The only way to be sure would be to check its anatomy, but from the photos there does not seem to be a distinction between the foot and the body. Also the area around Leigh, where the University of Auckland marine laboratory is situated has been a collecting haunt of a number of opisthobranch workers for many years, including Michael Miller and Richard Willan, and I am pretty sure an animal like yours, despite its small size, would not have escaped their eagle eyes, and attention, if it were an opisthobranch.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Aug 3). Comment on Unknown Opisthobranch from New Zealand by Angela Dinapoli. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17305

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