Freshwater sleeper
| Freshwater sleeper | |
|---|---|
| Odontobutis obscura | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Clade: | Percomorpha | 
| Order: | Gobiiformes | 
| Family: | Odontobutidae Hoese & A. C. Gill, 1993 | 
| Genera | |
| See text | |
Freshwater sleepers are a small family, the Odontobutidae, of gobiiform ray-finned fishes native to freshwater rivers flowing into the South China Sea and the northwestern Pacific Ocean. The family consists of about 22 species in six genera.