Glossodoris rufomarginata (Bergh, 1890)

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This species has been observed on Mayotte Island

Order : Nudibranchia
Suborder : Doridina
Family : Chromodorididae
Distribution : Tropical Indo-West Pacific
Maximal size : 35 mm
Abundance :

Species characteristics :

This seaslug is characterised by the orange to orange-brown speckled pattern on the mantle, the orange to orange-brown mantle border and the broad white submarginal band.

The rhinophores and gills are burnt orange to orange-brown, and lined with white.


glossodoris rufomarginata
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Photo Sylvain Le Bris
Mayotte, 5 December 2008

See more about : Sightening and mating periods

Remarks :

Identification confirmed by Nathalie Yonow

Bibliographic data :

It is quite variable in colour...
    The side of the foot are more or less speckled with orange
    The tail is white with an orange speckled mid dorsal area
    The 12 to 19 simple gills are spirally arranged and surround the anus. The gills are burnt orange to orange-brown with white axes
    The rhinophores have a translucent white stalk and the clavus is burn orange to orange-brown (darker than the mantle) with white axes
    It feeds on siliceous sponge
    The spawn is a white coiled ruban

References :

Bill Rudman Sea slug site : Sea Slug Forum : Glossodoris rufomarginata
   Nudipixel Glossodoris rufomarginata

Publications :

Berg, L.S.R. 1890. Malacologische Untersuchungen. In : C. Semper (ed.). Reisen im Archipel der Philippinen. Zweiter Theil. Wissenschafliche resultate 2(17) : 973-991, pls 85-89
    Rudman, W.B. (1986) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: The genus Glossodoris Ehrenberg (= Casella , H. & A. Adams). Zoological Journal of the Linnean Society, 86(2) : 101-184.

Other photos of Glossodoris rufomarginata :



Matthias Deuss

Mayotte, M'Bouini, fringing reef of "plage aux baobabs", less 1 m, 21 December 2009, size : 30 mm

The side of the foot (a) are more or less speckled with orange


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