| Caucasian goby | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Gobiiformes |
| Family: | Gobiidae |
| Genus: | Ponticola |
| Species: | P. constructor |
| Binomial name | |
| Ponticola constructor (Nordmann, 1840) | |
| Synonyms | |
| |
The Caucasian goby (Ponticola constructor) is a species of goby native to rivers of the Caucasus draining to the Black Sea in Europe and Asia. This species is strictly a fresh water species and will not enter brackish water. It can reach a length of 20 centimetres (7.9 in) SL.