Costasiella sp. 4 from Lizard Island, Qld.

January 10, 2004
From: Nils Anthes

Dear Bill,
Here is a picture of a small Aeolid (ca. 3-5mm) that we found in hundreds on sandy bottoms at 16-18m depths at Watsons Bay (Lizard Island, QLD, Australia) in late December 2003. They seem to feed on the algae where we mostly found them.

Best wishes
Nils Anthes

anthes@uni-muenster.de

Anthes, N., 2004 (Jan 10) Costasiella sp. 4 from Lizard Island, Qld.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11833

Dear Nils,
This is a sacoglossan rather than an aeolid, and from the position of the eyes - close together in the middle of the head - it is a species of Costasiella. I don't know a species with a pattern of white lines on the cerata like this, but if it is named this colour pattern will be instantly identifiable
Best wishes
Bill Rudman

Rudman, W.B., 2004 (Jan 10). Comment on Costasiella sp. 4 from Lizard Island, Qld. by Nils Anthes. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11833

Factsheet

Costasiella usagi

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  1. Colour variation in Costasiella usagi [1]
    From: C. Carlson & P. Hoff, January 15, 2004
  2. Colour variation in Costasiella usagi [2]
    From: C. Carlson & P. Hoff, January 15, 2004
  3. Costasiella sp. 4 is C. usagi
    From: Clay & Patty Jo, January 12, 2004

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