Hypselodoris obscura from sthn Queensland

June 2, 2009
From: Gary Cobb

Concerning message #21208:

Hi Bill and everyone!
I present to you all Hypselodoris obscura which very common in this area. It has been found at all dive and intertidal sites. You can find it on almost every dive.

Locality: Noosa to Woody Pt Sunshine Coast, 30 m to 30 mm, Queensland, Australia, Pacific Ocean, 26 May 2009, Subtidal and Intertidal. Length: 4 mm to 60 mm. Photographer: Gary Cobb and David Mullins.

I have included photos of it actually laying it's egg mass, eating with it's buccal mass extended and a great shot of David Mullins on a red sponge. I don't think it is feeding on this red sponge, maybe checking it out.
Cheers
Gary

gary@nudibranch.com.au

Cobb, G.C., 2009 (Jun 2) Hypselodoris obscura from sthn Queensland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22496

Thanks Gary,

I tend to agree that the animal on the red colony is not feeding - I assume it's a sponge but perhaps it's an ascidian? Interestingly, the white 'stuff' the animal with its everted oral tube is on could well be the food sponge. It doesn't look like a sponge at all but the only record we have of H. obscura feeding is an earlier message from the Atkinsons [message #15878] which shows are rather white 'rock-like' colony of a species of Dysidea, very similar in appearance

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Jun 2). Comment on Hypselodoris obscura from sthn Queensland by Gary Cobb. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22496

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