Thecacera pennigera laying eggs - Woods Hole

December 4, 2003
From: Alan Shepard

Bill -
I know you are always interested in photos of nudibranchs actually doing something. Here is a photo of Thecacera pennigera from Woods Hole, Massachusetts, laying eggs. At least that's what I assume was going on.

All the egg strands I found were white but from time to time I encountered some that were pinkish. I assume that the pink coloration indicates that they were newly laid and that they turn to the white color after a time. I could be wrong on that though.
Best wishes,

Alan Shepard
Tolland, CT, USA

alan.chepard@snet.net

Shepard, A., 2003 (Dec 4) Thecacera pennigera laying eggs - Woods Hole. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11590

Dear Alan,
This is an interesting addition to your earlier messages on these animals from Woods Hole. The eggs of quite a few species show a colour change as they develop but I am not sure if those of Thecacera pennigera have been reported to do so.
Best wishes
Bill Rudman

Factsheet

Thecacera pennigera

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