Berthellina engeli? from Florida

September 24, 2002
From: Linda Ianniello

Dr. Bill,
Here is a photo of what looks like Berthellina engeli from Paul Humann's book. It was found in the Florida Keys, in August, 2001 on a night dive. It was at a depth of about 35 feed and was about 1.5 inches long. Maybe this will help a little in determining the distribution of this species.
Linda I.

Ianniello, L., 2002 (Sep 24) Berthellina engeli? from Florida. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Note: See Lucas Cervera's message suggesting that Berthellina quadridens is the correct name for Caribbean specimens, and second message suggesting that east Pacific animals were B. ilisima

Thanks Linda,
Berthellina engeli is certainly the name used for animals from the Caribbean but the identity of this species, or rather, what the name applies to, needs some more research.
Bill Rudman

Rudman, W.B., 2002 (Sep 24). Comment on Berthellina engeli? from Florida by Linda Ianniello. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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