Image courtesy of Francis and Pirjo Pellet
Dermatobranchus cf. albus (Eliot, 1904)
This is one of the more variable species in the genus Dermatobranchus. The genus is separated from Armina because it lacks secondary respiratory leaves on the sides of the body.
Pretty sure this is Dermatobranchus albus which can be white to black with prominent dorsal longitudinal ridges, which may have orange pigment on them. The margins of the mantle and oral veils are orange. The rhinophores are black with orange apices. Sure looks like it to me.
Found throughout the Indian and Western Pacific oceans.
New Braunfels, TX
Send Dave email at firstname.lastname@example.org
Francis and Pirjo Pellet live in Les Vans in the Rhone Valley, France. I first met Francis and Pirjo at the July, 2005 Opisthobranch Course held at Cerbere, France hosted by Robert Oms We have reconnected at various times thru the years but more recently at the Nudibranch Conference held at Crystal Blue Philippines resort in May.
I can't say enough about the Pellets and their slug hunting and photography skills although they probably don't need an introduction to readers of this site!. A good many of their finds are in the 5mm and below category which in my estimation is the ultimate challenge in sea slug hunting! Of course photographing something this small is by no means a "slam dunk" as in basketball parlance! There are focus and depth of field considerations which can drive the underwater photographer to exasperation. The Pellets , it goes without saying, excel in super macro photography of sea slugs!
They have through the years contributed countless stunning images to the site for which I am extremely appreciative.