Re: Glossodoris averni or G. angasi?

April 19, 2006
From: Bruce Wilkie


Concerning message #16306:

Hi Bill,
Thanks for setting me straight on these animals.
Here are some more photo`s which are what I would think are more typical examples of G. averni. They are also what I based my identification on.

Upper photo: 31 December 2005, Flat Rock, North Stradbroke Island, Queensland Australia, Pacific ocean. Depth 15 mts, Temp 26 deg C. Middle photo: 18 December 2005, Flat Rock, North Stradbroke Island, Depth 14 mts, Temp 25 deg C. Lower photo: Manta Bommie, Point Lookout, North Stradbroke Island, 12 metres, Queensland Australia, Pacific ocean, 7 January 2006, rocky reef with sponges, hard & soft corals . Length: 50 mm. Photographer: Bruce Wilkie.

Many Thanks,
Bruce Wilkie.

brucedwilkie@yahoo.com.au

Wilkie,B, 2006 (Apr 19) Re: Glossodoris averni or G. angasi?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16350

Dear Bruce,
As you will see from Nerida's message [#16356], I previously thought the brown bordered animal was different [see Glossodoris sp. 3]. Among other things it lacks a coloured border to the foot. Certainly your earlier animals seem to lack a colour border to the foot so perhaps I was right previously - or perhaps as Nerida implies, we need to find out more about this 'species' or colour form which seems to straddle the Queensland - New South wales border. As with many of these species, we really don't know enough about G. averni to decide whether animals with and without a colour border to the foot can be considered part of its colour variability.

Certainly the four animals illustated here at least show the variability in the degree of folding of the mantle edge.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Apr 19). Comment on Re: Glossodoris averni or G. angasi? by Bruce Wilkie. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16350

Factsheet

Glossodoris averni

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