Noumea crocea
Rudman, 1986

Suborder: DORIDINA
Family: Chromodorididae


Western Pacific - Known from Queensland and Solomon Islands. [Also messages in Forum from Indonesia, Philippines, Marshall Ids]


Moreton Bay, Queensland, 16mm long. Photo: Richard Willan.


Noumea flava colour group

The whole of the body, including the gills and the rhinophores, is yellow except for a pale almost white band around the mantle margin. At the extreme edge of the mantle outside the white band is a thin yellow line. The mantle is ovate with a moderately wide mantle skirt which has a semi-permanent fold half way along each side and also some temporary folding. The simple gills are arranged in a circle, open posteriorly, around the anus. From the preserved specimens, the mantle glands appear to be small single glands arranged in a multiple band around the mantle edge. As in Noumea flava, the mantle fold halfway along each side is more characteristic of Thorunna than Noumea but the buccal armature and reproductive system, both very similar to those of N. flava, clearly place this species in the genus Noumea.

• Rudman, W.B. (1986) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Noumea flava colour group. Zoological Journal of the Linnean Society, 88: 377-404.

Authorship details
Rudman, W.B., 1998 (March 28) Noumea crocea Rudman, 1986. [In] Sea Slug Forum. Australian Museum, Sydney. Available from

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