| Three-spot nudibranch | |
|---|---|
|  | |
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| (unranked): | clade Heterobranchia clade Euthyneura | 
| Superfamily: | Doridoidea | 
| Family: | Cadlinidae | 
| Genus: | Aldisa | 
| Species: | A. trimaculata | 
| Binomial name | |
| Aldisa trimaculata Gosliner in Millen & Gosliner, 1985 | |
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Euctenidiacea
clade Doridacea
The three-spot nudibranch, scientific name Aldisa trimaculata, is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Cadlinidae.
This demersal species has so far only been found around the southern African coast, on both sides of the Cape Peninsula, in 10-30 m of water. It may possibly be endemic to that area.
The three-spot nudibranch is a tan-coloured dorid with a warty skin and three brown spots, which are themselves spotted with lighter patches. The animal has eight gills arranged around the anus and its rhinophores are perfoliate. It may reach a total length of 40 mm.
This species feeds on sponges.