Red Sea Phyllidiopsis

December 30, 2004
From: Binyamin Koretz

Hi Bill,
Could this be Phyllidiopsis sinaiensis? It has the bicolored rhinophores but far more black (including the central ridge) than the other specimens we've seen for this species. It being Eilat, there's not a lot of other possibilities.

Locality: Coral Beach Nature Reserve, Eilat, Israel. Red Sea
Depth: 10m. Length: 8 cm. June 2003
mixed sand and coral pinnacles
Photographer: Binyamin and Shulamit Koretz

Binyamin Koretz

Koretz, B., 2004 (Dec 30) Red Sea Phyllidiopsis. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Binyamin,
I am pretty sure you are correct in thinking this is Phyllidiopsis sinaiensis. As with most nudibranchs, we don't know a lot about colour variation in this species, but it seems most likely that this is an animal with an overabundance of the black pigmentation.

Perhaps Michael Schroedl, who has first hand knowledge on this species will be able to give us his views?
Best wishes,
Bill Rudman

Rudman, W.B., 2004 (Dec 30). Comment on Red Sea Phyllidiopsis by Binyamin Koretz. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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