Notodoris citrina from Queensland

August 7, 2001
From: Carle Parkhill

Dear Bill,
I've been doing a lot of underwater photography and never had trouble until this shot. The camera wouldn't focus on the subject, it was like looking at a fluorescent light. Could you please tell me what sort of nudibranch it is? It is from off Mooloolaba, Queensland, Australia, in about 15 meters.

Parkhill, C., 2001 (Aug 7) Notodoris citrina from Queensland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Carle,
This is Notodoris citrina. It probbaly feeds on the yellow sponge in the back left of your photo. It is sometimes very difficult to focus on slugs when there is no clear feature to aim at and the colour is very uniform. Autofocus systems often go crazy.
Best wishes,
Bill Rudman.

Rudman, W.B., 2001 (Aug 7). Comment on Notodoris citrina from Queensland by Carle Parkhill. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Notodoris citrina

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