Tadpole goby

Tadpole goby
Temporal range:
Black Sea tadpole-goby (Benthophilus nudus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiiformes
Family: Gobiidae
Subfamily: Gobiinae
Genus: Benthophilus
Eichwald, 1831
Type species
Gobius macrocephalus
Pallas, 1788
Synonyms
  • Aspidophilus Koumans, 1931
  • Doliichthys Sauvage, 1874
  • Hexacanthus von Nordmann, 1838

The tadpole-gobies (Benthophilus), also called pugolovkas (which means "tadpole" in Russian), are a genus of Ponto-Caspian fish in the family Gobiidae.

They are distributed in the fresh and brackish waters of basins of the Black Sea, Caspian Sea and the Sea of Azov, up to salinities of about 20 ‰. They typically live in habitats such as the deep waters of the Caspian (salinity about 13 ‰) and in the deltas, estuaries and coastal waters of the Ponto-Caspian.

Tadpole-gobies are small fish, never larger than 15 cm (5.9 in), and usually smaller. Their life span is about one year. After spawning they die.