Goniobranchus setoensis (Baba, 1938)
As mentioned in last week's BOW members of the genus Goniobranchus are distinct from other chromodorid genera in that their egg coil is laid on edge, not flat against the substrate.
This species was named by Dr. Kikutaro Baba to recognize the Seto Marine Biological Laboratory operated by Kyoto University in Japan (-ensis denotes - "from" seto). Dr. Baba did much of his research their publishing 100's of papers and naming almost as many new species. His favorite journal near the end of his life was Publications of the Seto Marine Biological Laboratory. To honor this great malacologist, Terry Gosliner and I named Hypselodoris babai Gosliner & Behrens 2000 (Courtesy of Bill Rudman's Sea Slug Forum), and more recently Angel Valdes named Philine babai Valdes, 2008.
This species is often confused with Goniobranchus decorus (Courtesy of Bill Rudman's Sea Slug Forum) which is virtually identical with the exception that the white lines are very fine and lack the associated purple spots of G. decorus.
As we mention in Nudibranchs and Sea Slugs Identification, additional work is needed to determine whether these two species are distinct of simply color variations.
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