Nembrotha lineolata from nthn Sulawesi

July 9, 2002
From: Helmut Schirmböck

Here is another picture for your site. It was taken in the Bunaken Is - Lembeh Strait region of Nth Sulawesi, Indonesia, [April-May, 2002] but I don't know the diveplaces anymore.
Sorry.
Regards,
Helmut.

schirmis@aon.at

Schirmböck, H. , 2002 (Jul 9) Nembrotha lineolata from nthn Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7407

Dear Helmut,
It is interesting to see this animal, Nembrotha lineolata on the ascidian Polycarpa aurata. In Mary Jane Adams' recent message she asked whether it was significant that she had found this animal laying its eggs on this ascidian. While in itself, we couldn't draw any significance from the observation, a second observation of the species in association with this ascidian certainly suggests we should keep our eyes out for more evidence that Nembrotha lineolata feeds on it. Looking at the colour of the ascidian in your photo, the blue and yellow and the lines, are all repeated in the colour pattern of the nudibranch. I had never thought of its colour pattern being a camouflage pattern, but again its something worth thinking about. As noted on the Fact Sheet, this species is reported to feed on a number of different ascidians, none of which have any colour similarities.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jul 9). Comment on Nembrotha lineolata from nthn Sulawesi by Helmut Schirmböck. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7407

Factsheet

Nembrotha lineolata

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