Dermatobranchus gonatophorus  van Hasselt, 1824

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Dermatobranchus gonatophorus is characterized by a greyish background colour, by alternating black and yellow longitudinal lines, and by a yellow/orange marginal band on the mantle. The foot has also a yellowish marginal band. The rhinophore stalk is white and the club is black. The oral veil is white with a yellow/orange border.
This species is pretty variable in its background colour, some specimens have large dark grey patches. Many variants are shown on nudipixel.
More information on Dermatobranchus gonatophorus are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2018), published 2 February 2018, Dermatobranchus gonatophorus  van Hasselt, 1824
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Dermatobranchus_gonatophorus.htm