Chromodoris hamiltoni & C. quadricolor near Pemba?

April 17, 2006
From: Rob Veelenturf


Dear Bill,

On a dive near Pemba I saw these two fellows. I guess they are both Chromodoris hamiltoni, but the one in the front is quite dark. What do you think?

Locality: Pemba, 20 metres, Tanzania, Indian Ocean, 05 March 2006. Photographer: Rob Veelenturf.

Best Regards,
Rob Veelenturf

rob@cv-design.com

Veelenturf R., 2006 (Apr 17) Chromodoris hamiltoni & C. quadricolor near Pemba?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16372

Dear Rob,
You have two species here. I have split your photo in two so there is no mistake which is which. The dark one [Photo B] is Chromodoris quadricolor and the brighter on [Photo C] is C. hamiltoni. The colour of both species is almost identical to photos of mine you will find on the Fact Sheets of each of these species from near by Dar es Salaam.

They are certainly very similar in colour but this seems to be a defensive strategy quite a few species of chromodorids have adopted [see aposematic colouration Fact Sheet]
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Apr 17). Comment on Chromodoris hamiltoni & C. quadricolor near Pemba? by Rob Veelenturf. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16372

Factsheet

Chromodoris hamiltoni

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