Hermaea bifida from the Scottish west coast.

May 26, 2005
From: Jim Anderson

Dear Bill,

Here are some photos of Hermaea bifida. This was a first for me and ID'd by Dr Bernard Picton.

It is very pale in colour and Bernard suggests it had been feeding on a green or brown algae, anyway it was exceptionally well camouflaged. Sea temperature approx 10 deg C.

Locality: Kenmore Point, Loch Fyne, Scotland. Depth: 10 metres. Sea loch on west coast of Scotland. Length: 20 mm (approx). 15 May 2005. boulder slope. Photographer: Jim Anderson

Kind regards,
Jim A

jander4454@gmail.com

Anderson, J.B., 2005 (May 26) Hermaea bifida from the Scottish west coast.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13814

Dear Jim,
Thanks for these photos. It is opportune to have them at the same time as I have been posting photos of a species of Aplysiopsis [see message #13862] as it shows the greatest external difference between the two genera, which is the almost total transparency of species of Hermaea, and the heavy pigmentation found in species of Aplysiopsis.

I have included some close-ups to show the shape of the cerata and the branching of the digestive gland within the cerata.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (May 26). Comment on Hermaea bifida from the Scottish west coast. by Jim Anderson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13814

Factsheet

Hermaea bifida

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