Risbecia godeffroyana? from Solomon Ids

September 6, 2000
From: Mary Jane Adams


Hi Bill,
I took these photographs in the Solomon Islands in November, 1987. Unfortunately, I didn't record the exact location or depth. Do you think Risbecia imperialis is a better name for this than R. godeffroyana?
Thanks!
Mary Jane

mjadams@earthlink.net

Adams, M.J., 2000 (Sep 6) Risbecia godeffroyana? from Solomon Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2952

Dear Mary Jane,
This is another intersting question. basically with little anatomical to go on, where do you draw the line?. When I first saw good photos of R. imperialis I considered it to be just when end of range of colour variation which included what I had previously called R. godeffroyana. However after about a year's reflection - but no new information I must add - I am now thinking perhaps that the Pacific form [R. godeffroyana] with small spots should be considered separate from the Hawaiian form [R. imperialis] with large yellow spots.

Any colour variants are still very welcome.
Best wishes,
Bill Rudman.

Note added 9 Jan 2001: R. imperialis and R. godeffroyana have previously been considered on the Forum to be colour forms of one species. They are now separated as two species, this animal being R. godeffroyana.

Rudman, W.B., 2000 (Sep 6). Comment on Risbecia godeffroyana? from Solomon Ids by Mary Jane Adams. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2952

Factsheet

Risbecia godeffroyana

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