Ancula from NE Pacific

May 29, 2006
From: William Hevener

Attached is a picture of a nudibranch that I have neither seen nor been able to identify via the web or books. Any assistance would be greatly appreciated.

Locality: Langley, 37 feet, WA, USA, Pacific Ocean, 14 May 2006, Tidal, Shore, Sandy Bottom. Length: 14 mm. Photographer: William H. Hevener.

V/r,
Bill Hevener

william.hevener@navy.mil

Hevener, W.H., 2006 (May 29) Ancula from NE Pacific. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16657

Dear Bill,
This is part of the Ancula puzzle. Species from both the northern Pacific have been idnetified as Ancula gibbosa but some with distinct yellow lines, from the nthn Pacific have been distinguished as Ancula pacifica. At present I have them all together on the Ancula gibbosa page. Looking carefully at your photos I can see traces of yellow on the papillae around the edge of the body and on the gills which might suggest a link between the pale translucent white forms and the yellow-lined A. pacifica forms.

Interestingly, your animal is closest in colour to one in Alan Shepard's message [#8883] from the Atlantic coast of Nth America.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (May 29). Comment on Ancula from NE Pacific by William Hevener. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16657

Factsheet

Ancula gibbosa

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