Young specimen of Jorunna funebris

February 12, 2008
From: Lawrence Neal


Dear Bill,

Thought you might be interested in this shot of Jorunna funebris.

In the Pattaya area of Thailand, J. funebris is one of the most common Nudibranchs. They can often be found on sponge encrusted rocks in the surge zone, usually less than 6 metres deep, and usually in association with the blue sponge.

This month (December - the coolest time of year here) I couldn't find any at all except for this tiny specimen less than 1 cm long. The spicules on this small animal are very clear.

Locality: Koh Rin, Chonburi, 6 metres, Thailand, Gulf of Thailand, 02 December 2007, Sponge and coral encrusted rocks in the surge zone. Length: 10 mm. Photographer: Lawrence Neal.

Best wishes,
Lawrence

lorenzo_n@yahoo.com

Neal, L., 2008 (Feb 12) Young specimen of Jorunna funebris. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21289

Dear Lawrence,

This looks very much like the photo I have on the Fact Sheet of two juveniles on their blue sponge. All I have to do now is get the sponge's identity sorted out. I had the blue sponge that the juveniles are on identified as Euplacella cf. australis [Fam: Callyspongiidae] but the blue sponge the adults are on has been identified as Xestospongia sp. [Fam: Petrosiidae]. I suppose they might change from one blue sponge to another as they grow but it would seem more likely that one of the identifications is wrong.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Feb 12). Comment on Young specimen of Jorunna funebris by Lawrence Neal. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21289

Factsheet

Jorunna funebris

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