Small Noalda? species

April 9, 2010
From: Atsushi Ono

Dear Bill,

This species with a very lovely face was found last year though it was a little ugly. I couldn't find single individual this year. This species looks very like the species called Noalda sp. 3 in Indo-Pacific Nudibranchs and Sea slugs [Gosliner, Behrens & Valdes, 2008]. In this individual from the Keramas, the flagellum seem to be thin and the body length is small, but I am sure it is the same species.

Locality: Kerama Is., 25 m, Japan, East china sea, 24 Mar. 2010, sandy with mud. Length: 6 mm. Photographer: Atsushi Ono.

Atsushi Ono

ononini@cosmos.ne.jp

Ono, A., 2010 (Apr 9) Small Noalda? species. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23454

Dear Atsushi,

Your mention of Indo-Pacific Nudibranchs and Sea slugs makes me feel a bit guilty because I have yet to add a review of this wonderful book on the Forum. Unfortunately with the ongoing problems I have been having with editing on the Forum, adding material to the books section has been very difficult.

Your animal is indeed what they are calling Noalda sp.3. I have had it on the Forum as Aglajiid sp. 6 and suggested a likeness to Noalda exigua. Since then I have obtained photos of the living animal of N. exigua and records of two other possible species of Noalda [Noalda sp. 1, Noalda sp. 2 ]. Unfortunately we know nothing about the anatomy of any of these species so what really links them is the 'foramen' or hole in the mantle through which part of the shell is visible.

I'll add a comment to the Aglajid sp. 6 Fact Sheet noting that it could be a species of Noalda.

Best wishes,
Bill Rudman

Rudman, W.B., 2010 (Apr 9). Comment on Small Noalda? species by Atsushi Ono. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23454

Factsheet

Aglajid sp. 6

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