Chromodoris tasmaniensis from Bruny Island
January 8, 2007
From: Julie Marshall
Dear Bill,
Attached is a photo of Chromodoris tasmaniensis from Adventure Bay, Bruny Island, Tasmania. It was found under a rock on its usual sponge though, as you can see, it had moved away from it by the time I took the photo.
Locality: Adventure Bay, Bruny Island, 1 m, Tasmania, Tasman Sea, 30 December 2006, Intertidal. Length: 35 mm. Photographer: Julie Marshall.
Best wishes,
Julie Marshall
juliemarshall@netspace.net.au
Marshall, J.G., 2007 (Jan 8) Chromodoris tasmaniensis from Bruny Island. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19167Thanks Julie,
This is an old favourite of mine - but from much cooler waters than your usual Heron Island contributions. It's interesting that C. tasmaniensis has both this pale yellow-orange colour form and the bright red colour form throughout its geographic range, althought the size and distribution of the spots change. In the southern part of its range - Victoria, Tasmania and South Australia, the spots are small and there is a distinct band around the mantle edge, while in the northern part of its range - New South Wales, the spots are large and randomly scattered. Have a look at the red-spotted chromodorid page for my ideas on this phenomenon.
Best wishes,
Bill Rudman
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