Noalda sp. 2

Family: Aglajidae


Known only from Andaman Sea


Locality: Tablamu, 6 metres, Phangnga, Thailand, Andaman Sea, east Indian Ocean, 13 February 2010, Rocky shoreline. Length: About 3 mm. Photographer: Lawrence Neal.

The yellow markings and general shape are very similar to that of Noalda exigua [see message #23262]. However the head of this animal looks more like that of a gastropterid and the shell is more enclosed than in N. exigua.  However until we know something of the anatomy of these animals I couldn't positively say the resemblance is more than co-incidental. It would not be the first time that we have been tricked by external similarities in unrelated primitive opisthobranchs.

To keep it simple I will include this animal as a species of Noalda. It is is the second species I have tentatively included in this problematic genus [see Noalda sp. 1]

Authorship details
Rudman, W.B., 2010 (February 19) Noalda sp. 2 [In] Sea Slug Forum. Australian Museum, Sydney. Available from

Related messages

  1. Noalda sp. from the Andaman Sea
    From: Lawrence Neal, February 19, 2010

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