Colour variation in Chromodoris magnifica

March 13, 2002
From: Bernard Picton

Hi Bill,
I've been looking at the Chromodoris magnifica? which you identified for Lindsay from Hoga Is, Sulawesi on April 8, 1998. I had a couple of photos of the same animal, plus one from the Philippines in 1983 which is a dead-ringer for it. I've sent a couple of scans of typical C. magnifica as well. I am a little suspect of them being the same species, though as you have mentioned elsewhere there do seem to be cases where black lines are being replaced by brown in some individuals.

UPPER RIGHT (TOP) - Bali, March 1989
UPPER RIGHT (BOTTOM) - Mactan Is, Cebu, 27 Mar 1983 - BEPPH49
LOWER LEFT: - Hoga Is., Oct 1997
LOWER RIGHT: - Mactan Is, Cebu, 26 Mar 1983 - BEPPH39

Bernard

bernard.picton.um@nics.gov.uk

Picton, B., 2002 (Mar 13) Colour variation in Chromodoris magnifica. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6114

Thanks Bernard,
The bottom two photos do seem a bit of a problem In fact I think the Lower Left animal is probably Chromdoris annae. I have included a magnified copy of the head alomgside and you can see the characteristic punctate blue pattern. However despite a very close look at the lower right photo I can see no similar signs of a punctate pattern in that animal. Perhaps it is C. magnifica and these two colour patterns are a sign of a mimicry complex.

Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Mar 13). Comment on Colour variation in Chromodoris magnifica by Bernard Picton . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6114

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