Cuthona sp. 5
March 14, 2001
From: Erwin Koehler
Dear Bill,
Michel Barrabés has identified Cuthona sp. 5 as Catriona gymnota, confirmed by Juan Lucas Cervera. There is only one little problem: is it placed in the genus Catriona or Cuthona?
Erwin
Erwin@medslugs.de
Koehler, E., 2001 (Mar 14) Cuthona sp. 5. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3961Dear Erwin,
Catriona and Trinchesia have been considered synonyms of Cuthona for about 20 years. As more species became known, the defining differences between the genera began to blur into one another.
I would be grateful for some feedback from other Forum Participants on whether Cuthona sp. 5 is indeed Cuthona gymnota. One obvious feature of Cuthona sp. 5 are the rhinophores with their wide median orange band and the opaque white tip. As far as I can determine, in Cuthona gymnota the tip of the rhinophores is not pigmented. However I am not an expert on these Atlantic species so any comments are welcome.
best wishes,
Bill Rudman
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