| Dark sleeper | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Suborder: | Gobioidei |
| Family: | Odontobutidae |
| Genus: | Odontobutis |
| Species: | O. obscura |
| Binomial name | |
| Odontobutis obscura (Temminck & Schlegel, 1845) |
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| Synonyms | |
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Dark sleeper, Odontobutis obscura, is a species of Odontobutidae family. Freshwater benthopelagic fish, up to 12.0 cm length. Widespread in the water bodies of the Far East: China, Japan, and Korea.