Hypselodoris sp. 01  Genus: Stimpson, 1855

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Hypselodoris sp. 01 is characterized by a translucent whitish body with a white or yellow marginal band and a diffuse purplish-red submarginal band, and a bluish band at the anterior end of the mantle. The foot is also edged in blue. The triangular translucent whitish gills are edged in orange/red (2 lines), the gill pocket is elevated. The rhinophores are brilliant orange-red. There is a prominent reddish patch on the center of the notum.
Thanks for identification to Terrence M. Gosliner. Terry wrote November 2003 he is working on it with his student Rebecca Johnson.
This species is Hypselodoris sp. 10 in IPN:
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426pp. at page 269
This species was posted on 15 December 2003 at these websites as Hypselodoris sp. A  Genus: Stimpson, 1855.
For some genera, such as Trinchesia was the alphabet almost through. I had to change the distinguishing alphabetic character into a number. I have chosen 2-digit numbers, even though '01' looks a little bit stupid, and now is only the genus italic written.