Noumea simplex
(Pease, 1871)

Photographed by: Tatiana Antokhina
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Opisthobranchia |
| Order: | Nudibranchia |
| Suborder: | Doridina |
| Family: | Chromodorididae |
| Species: | Noumea simplex |
Comment from Richard Willan on photo #13454
Noumea romeri and Noumea simplex can only be separated externally by the presence of some orange pigment (as a spot, or dash, or a line) on the mantle edge in Noumea simplex (none in Noumea romeri).Locality:
- Thailand
- Koh Phi Phi (4) Apr, Aug, Dec
- Khao Lak (3) Mar, Apr
- Similan Islands (1) Apr
- Indonesia
- Bali (3) Mar, Jul
- Raja Ampat (1) Dec
- Philippines
- Malapascua (2) Feb, Oct
- Dauin (1) Oct
- Anilao (1) Mar
- Kenya
- Vietnam
- Vietnam (2) Apr, May
- Taiwan
- Jinshawan Beach Park (1) Jul
- Secret Garden (1) Jun
- North East Coast (1) Jul
- Long Dong (1) Jul
- Australia
- New South Wales (1) Sep
- Queensland (1) Oct
- Malaysia
- Sabah (1) Mar
- Myanmar
- Myanmar (1) Nov
- Guam
- Piti Channel (1) Jan
Pictures of Noumea simplex
Similar Species
Author: Gary Cobb
- Always has a distinct white mantle marginal band
- The mantle is pink
- The gills are always orange-red. Most all of the gills in the circlet are red right down to the gill pocket
- The rhinophoral clavus is most often completely orange-red. But sometimes the lower half of the clavus is white. The stalk is always white
Noumea simplex
- Never has a white mantle marginal band. It can have an orange band, or orange dashes, or orange spots but there is invariably some orange pigment somewhere on the mantle margin. The tip of the tail is usually orange too
- The mantle colour can be pink or white
- The gill are always white with only the very tips of the anteriormost 3 gills being red
- The rhinophores have a red-tipped clavus. The majority of the clavus and the stalk are always white. The individual rhinophoral lamellae are transparent white