Information on Hypselodoris picta

January 31, 2002
From: Joe Helferich

My LFS (The Fish Tank in Alamogordo, NM, USA) recently received 2 of what we think are Hypselodoris picta, they are dark purple/black with gold/yellow striping. They are about 3 inches in length. Since being received on early morning the 22nd [Jan 2002] there are 2 new egg ribbons probably 4-5 inches in total length :) these are the only 2 creatures in a 75 gal tank and now nothing else is going in. They seem to be picking.. very little.. at a brownish/black sponge on a piece of rock, some algae spots, and observed "catching" brine/mysis shrimp in their "tentacles" and it disappears. Is there any further info on feeding habits and care of the young that might (keeping fingers crossed) hatch ??

Thanks
Joe

munchieiam@yahoo.com

Helferich, J., 2002 (Jan 31) Information on Hypselodoris picta. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6095

Dear Joe,
I really haven't much to add to what I have said about similar questions on this page and on the Keeping in captivity Page.

Species of Hypselodoris feed exclusively on sponges. I am not sure what your observation that brine shrimps seem to disappear into their tentacles means but it has nothing to do with feeding. The head tentacles [rhinophores] are sense organs and the feathery gills are for breathing.

Concerning the eggs. According to Lucas Cervera in an earlier message, the eggs of H. picta should be relatively large and the young should hatch directly from them as small crawling slugs without a free-swimming larval stage. While it is easier to breed them if you don't have to look after free-swimming larvae, the young will only survive if they have an immediate supply of their food sponge. So we are back to square one again.

If you have a photo of the nudibranch, and the eggs, it would be a useful bit of information, but I am afraid keeping either the adults, or the young alive if they hatch, depends on getting a supply of their food sponge.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jan 31). Comment on Information on Hypselodoris picta by Joe Helferich. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6095

Factsheet

Hypselodoris picta

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