Chromodoris hamiltoni from Madagascar

May 21, 2009
From: Sully Bachel

Concerning message #13284:

Hello Bill

I've found this nudibranch at Lakana Ile, Ste Marie, Madagascar. It looks like a Chromodoris hamiltoni but the blue background colour is very pale and I don't know if the central black line is a caracteristic of the species

Locality: Ste Marie island, 28 m, Madagascar, Indian Ocean, 20 October 2008. Length: 20 mm. Photographer: Sully Bachel.

Best regards
Sully
http://seaslugs.free.fr/index.htm

s.bachel@orange.fr

Bachel S, 2009 (May 21) Chromodoris hamiltoni from Madagascar. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22337

Dear Sully,

Yes this is C. hamiltoni. You will see on the Fact Sheet and animal very similar to yours in colour. In this species we sometimes find that some of the black lines are replaced by a diffuse orange-brown pigmentation. It also occurs in a few other species. We have no idea what causes this.

It is possible the animal is feeding on the orange-red sponge but I can't be sure from these photos.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (May 21). Comment on Chromodoris hamiltoni from Madagascar by Sully Bachel. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22337

Factsheet

Chromodoris hamiltoni

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