Re: Flabellina verrucosa? from New York

August 29, 1999
From: Terry Gosliner

Dear Bill,

I am pretty certain that the specimens that Betsey photographed and that you tentatively identified as Flabellina verrucosa is without a doubt correctly identified as F. verrucosa. The main external characteristics for differentiating F. verrucosa from Flabellina gracilis is that the cerata are more distinctly arranged in rows in F. gracilis and there is a more prominent vestige of a notal brim in F. gracilis. Also F. gracilis has a sort of notched head between the junction of the oral tentacles and more elongate anterior margins of the foot'.

I will try to dig out some of my photos of these species from Maine and New Hampshire, especially since they have caused a lot of historical confusion. Alan Kuzirian's review of those species (I think that it was published in J. Moll. Stud. in about 1979) really clarified much of this historical confusion.
Terry

tgosline@calacademy.org

Gosliner, T., 1999 (Aug 29) Re: Flabellina verrucosa? from New York. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1256

Thanks Terry,
it would be great to get some more photos showing the variation in F. verrucosa.
Bill Rudman.

Factsheet

Flabellina verrucosa

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