Hypselodoris bullocki-apolegma from Malaysia

July 21, 2002
From: Richard Houghton


Hi Bill.
These are from Pulau Aur, Malaysia. Found in 7 metres of water. 60mm in length. June 2002.

On two separate trips (two weeks apart) we found this species engaged in procreation. They were not the same individuals in both places as they were probably 100 metres apart at least.
Rich

richard_houghton@hotmail.com

Houghton, R., 2002 (Jul 21) Hypselodoris bullocki-apolegma from Malaysia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7509

Dear Rich,
This is an animal I have been calling a 'colour form' of Hypselodoris bullocki but Nathalie Yonow recently described it as a new species Risbecia apolegma. However I have also posted a photo which shows 'Risbecia apolegma' mating with a more typical H. bullocki which suggests we still have things to learn about this colour group. I must say I have been overwhelmed by the silence after posting the mating photo. I thought I might have got some comments. Does anyone else think it is significant or are we generally happy with the idea of interspecies mating?
Cheers,
Bill Rudman

Rudman, W.B., 2002 (Jul 21). Comment on Hypselodoris bullocki-apolegma from Malaysia by Richard Houghton. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7509

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