Dermatobranchus ornatus
(Bergh, 1874)

Suborder: ARMININA
Family: Arminidae


Tropical Indo-West Pacific.


Seragaki, Okinawa, 4 August, 2000. Depth: 56m
Lengths: 60mm, 62mm, 80mm. Photo: Bob Bolland.

A relatively large species of Dermatobranchus usually characterised by the often flat-topped orange tubercles on the mantle, and the orange border to the mantle and oral veil. As ilustrated here in Bob Bolland's photo, colour is variable and tubercles sometimes lack any colouration. In other specimens the tubercles are large and form raised orange rings.

See message below.

• Bergh, L.S.R. (1873). Malacologische Untersuchungen. In: C.G. Semper, Reisen im Archipel der Philippinen, Wissenschaftliche Resultate. Band 2, Heft 5: 205-246, Pls. 25-31.

Authorship details
Rudman, W.B., 2000 (August 6) Dermatobranchus ornatus (Bergh, 1874). [In] Sea Slug Forum. Australian Museum, Sydney. Available from

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