Re: Elysia patina from Florida

August 26, 2006
From: Kathe R. Jensen

Concerning message #17468:

Dear Skip and Bill,
I can only say that the animals Kerry and I identified as Elysia patina in Florida were a lot darker green in color, but obviously that is not a good character. And, Skip, I am also confused about E. papillosa and E. patina - in fact this was a discussion that Kerry and I never finished (so maybe I will get the final say?). It is difficult to see pericardium and dorsal vessels in these pictures, but the dorsal vessels and the "gametolytic vesicles" were the main external features we used for identification. I don't remember the radular teeth, but I do remember that "E. patina" was collected on Udotea and E. papillosa on Penicillus - but I think that both would feed on both algae in the lab. The present animal(s?) seems to have a brown band on the rhinophores, which is usually seen in E. papillosa. On the other hand, the low, warty papillae are not like the ones I remember from E. papillosa.

Bill, your explanation about "gametolytic vesicles" is correct, except that I have never seen them disappear once they were formed - but maybe I haven't kept the animals long enough to empty their sperm stores.

Best wishes,
Kathe

krjensen@snm.ku.dk

Jensen, K.R., 2006 (Aug 26) Re: Elysia patina from Florida. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17610

Thanks Kathe,
Bill Rudman

Rudman, W.B., 2006 (Aug 26). Comment on Re: Elysia patina from Florida by Kathe R. Jensen. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17610

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