Atopocottus

Atopocottus is a monospecific genus of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. Its only species is Atopocottus tribranchius which is found in the Sea of Japan where it is only known from the waters off of Niigata Prefecture. This species grows to 3 cm (1.2 in) SL.

Atopocottus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Perciformes
Suborder:	Cottoidei
Superfamily:	Cottoidea
Family:	Psychrolutidae
Genus:	Atopocottus Bolin, 1936
Species:	A. tribranchius
Binomial name
Atopocottus tribranchius Bolin, 1936