Eastern tubenose goby

The eastern tubenose goby (Proterorhinus nasalis) is a species of gobiid fish native to fresh and brackish waters of the basins of the Sea of Azov and the Caspian Sea and has invaded the upper reaches of the Volga River from its native occurrence in the delta. This species prefers slow flowing rivers or still waters with plentiful rocks or vegetation. It can reach a length of 9 centimetres (3.5 in) SL.^[2] It is probably the same species as that recently treated as Proterorhinus semipellucidus (or P. cf. semipellucidus).^[3]

Eastern tubenose goby
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Gobiiformes
Family:	Gobiidae
Genus:	Proterorhinus
Species:	P. nasalis
Binomial name
Proterorhinus nasalis (De Filippi, 1963)
Synonyms
Gobius nasalis De Filippi, 1963