Hypselodoris 'bullocki' again

January 5, 2002
From: Mary Lefebvre


I was told from the people we got this from that this particular nudibranch is an algae eater, like a "lettuce" nudibranch. However, he is not eating (surprise, surprise...).

The central area is solid purple. The behavior, in case it helps: He wanders up as high as he can go, then "surfs" like in the second picture for about 5 or 10 minutes, then finally lets go, drifts in the current, and starts over again.

By the way, there will be more pictures posted soon with our other tank pictures at http://www.arches.uga.edu/~mlefebvr, including the baby cardinalfish and other things.

Thanks for any help.
Mary Lefebvre

mlefebvr@arches.uga.edu

Lefebvre, M., 2002 (Jan 5) Hypselodoris 'bullocki' again. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5875

Dear Mary,
Have a look at my reply to Alexandra's message. This is a 'form' of Hypselodoris bullocki which is a specialist sponge feeder. All nudibranchs are carnivorous. The "lettuce" nudibranch your supplier mentioned is Elysia crispata and is a herbivore. However it is not a nudibranch, but a related group of opisthobranchs or sea slugs, which are known as sacoglossans.

As you will see from previous messages, aquarium suppliers are not a good source of accurate information on sea slugs.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jan 5). Comment on Hypselodoris 'bullocki' again by Mary Lefebvre. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5875

Factsheet

Hypselodoris bullocki - Page 3

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