Re: Possible food of Hypselodoris edenticulata

June 8, 2001
From: Juan Lucas Cervera

Dear Bill,

Chris Todd and I have a Spain-UK short grant to carry out some studies concerning the development of some species of nudibranchs from UK and the southern Spain. One of the targeted species is Hypselodoris picta which according to Clark & Goetzfried (1978) (they called the Caribbean animals H. edenticulata) shows direct development. However, the specimens from the Strait of Gibraltar have spawns from which planktotrophic larvae hatch. So:

•1. Is it possible H. edenticulata is different from H. picta?
• 2. Is it possible H. picta can show a different type of development depending of the geographical area or food availability?

Obviously, more studies are needed.

Reference:
• Clark, K.B. & Goetzfried, A. 1978. Zoogeographic influences on development
patterns of North Atlantic Ascoglossa and Nudibranchia, with a discussion of
factors affecting egg size and number. Journal of Molluscan Studies, 44: 283-294.

Regards.
Lucas.

lucas.cervera@uca.es

Cervera, J.L., 2001 (Jun 8) Re: Possible food of Hypselodoris edenticulata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4536

Dear Lucas,
It sounds very interesting. I look forward to learning of your results. If anyone in the Caribbean finds this animal alive it would be well worth checking out its egg mass and development type. If it lays an egg mass in an aquarium keep it safe until you can see if crawling slugs or swimming larvae hatch out. If its in the wild, a close-up photo of the egg mass could provide important clues.
Best wishes,
Bill Rudman

Rudman, W.B., 2001 (Jun 8). Comment on Re: Possible food of Hypselodoris edenticulata by Juan Lucas Cervera. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4536

Factsheet

Hypselodoris picta

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