Costasiella from Bahia de Banderas

January 4, 2003
From: Alicia Hermosillo

Dear Dr. Rudman,
I have been terribly busy with my thesis but I have been reading the Forum. I have an interesting critter I found last week. I saw 2 of them and they jerk pretty much like Aeolidiella alba or Limenandra nodosa. Would you know what it is?

Data: Dec 12th, 2002 Islas Marietas, Bahia de Banderas, Pacific Coast of Mexico. 5mm long, 24 feet deep.
Thanks
Ali

gueri25@hotmail.com

Hermosillo, A., 2003 (Jan 4) Costasiella from Bahia de Banderas. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8711

Dear Ali,
This is a species of Costasiella - see how close the eyes are together. It has a very distinctive colour pattern with the bright red pericardial hump and smaller red spot on the head so it should be easy to identify if it has been described. It has perhaps been described in Avicennia which is a journal with very limited distribution. If anyone recognises this species I would be grateful for a reference
Cheers,
Bill Rudman

Rudman, W.B., 2003 (Jan 4). Comment on Costasiella from Bahia de Banderas by Alicia Hermosillo. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8711

Factsheet

Unidentified - East Pacific (Central and South America)

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