Hypselodoris saintvincentius from Western Australia

March 8, 2007
From: Bruce Potter


Dear Bill,

This is another one from Rockingham jetty. I found this Hypselodoris infucata clearly eating and so thought you might be interested. the other one was nearby. There were many H. infucata under this jetty.

It would have been about 35 to 40mm long and was at about 5 metres deep.

Locality: Rockingham, 5metres, Western Australia, Indian Ocean, 24 February 2007, Mucky under Jetty. Length: 35-40 mm. Photographer: Bruce Potter.

Regards
Bruce Potter

bandppotter@bigpond.com

Potter, B., 2007 (Mar 8) Hypselodoris saintvincentius from Western Australia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19603

Thanks Bruce,

It is always good to get feeding records like this. The animal is Hypselodoris saintvincentius, which is very similar in colour to H. infucata. One consistent difference seems to be that the gills appear 'fuller' than in H. infucata and have opaque white marks, or a line, up the basal half of the outer edge of each gill and in the upper half the red seems to line not only the outer edge but the edge of each gill lamellae as well.

We have a previous record from Rockingham on the Forum [#14263].  The pink sponge in the upper photo looks very like the species of Dysidea being eaten by H. infucata in an earlier message [#17805]. Its possible that the dark blue sponge in the other photo is the species of Dysidea illustrated in the Fact Sheet for H. saintvincentius, though we can't say for sure the slug is feeding on it.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Mar 8). Comment on Hypselodoris saintvincentius from Western Australia by Bruce Potter. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19603

Factsheet

Hypselodoris saintvincentius

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