Thecacera sp. 2

April 30, 2008
From: Kenneth Yong

Dear Bill,

It's question time again: Is this your Thecacera sp. 2? Will it soon receive a specific name?

Locality: Sipadan Island, Coral Garden divesite, 10 m, Sabah, Malaysia, Celebes Sea, 18 July 2007, On sandy bottom. Length: 5 cm. Photographer: Kenneth Yong.

Thanks a million.


Yong, K., 2008 (Apr 30) Thecacera sp. 2. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Kenneth,

Thanks for this record. I don't think anyone is working on this family at present. These days naming new species just for the sake of it is not given a high priority amongst most researchers. We usually try and describe new species in the context of a broader revision of a genus or family. In that way the anatomy of various species can be compared and evolutionary relationships considered.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Apr 30). Comment on Thecacera sp. 2 by Kenneth Yong. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Thecacera sp. 2

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