Pleurobranchaea brockii from Sydney

March 29, 2001
From: Erik Schloegl

Dear Bill,
This Pleurobranchaea brockii was photographed on a night dive well after sunset at Camp Cove, Sydney, at a depth of 4m on sandy bottom on 24 February, 2000.

Best wishes,

Schloegl, E., 2001 (Mar 29) Pleurobranchaea brockii from Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Erik,
This is a very interesting find. Perhaps because it seems to be a boring sandy bottom dweller, there are very few records of this species from anywhere in the Indo-West Pacific. We have a few records from around Sydney and Terry Gosliner identifies it from Spouth Africa. Apart from that there are Bergh's records from Japan.

Your nice head-on photo shows the sensory papillae on the underside of the oral veil very clearly. These are very similar to those of Euselenops luniceps, which is another sand-dwelling pleurobranch. Can you give me some imdication of size?

Best wishes,
Bill Rudman.

Rudman, W.B., 2001 (Mar 29). Comment on Pleurobranchaea brockii from Sydney by Erik Schloegl. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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