The Don tadpole-goby (''Benthophilus durrelli'') is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of goby widespread in the basin of the

Sea of Azov The Sea of Azov ( Crimean Tatar: ''Azaq deñizi''; russian: Азовское море, Azovskoye more; uk, Азовське море, Azovs'ke more) is a sea in Eastern Europe connected to the Black Sea by the narrow (about ) Strait of Kerch, ...

, specifically in the lower Don River and Tsimlyansk Reservoir. This species is found in rivers, reservoirs and river mouths, but is not known to enter seas. It is introduced and

invasive Invasive may refer to: *Invasive (medical) procedure *Invasive species *Invasive observation, especially in reference to surveillance *Invasively progressive spread of disease from one organ in the body to another, especially in reference to cancer ...

upstream the

Volga River The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the List of rivers of Europe#Rivers of Europe by length, longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Cas ...

, e.g. the

Kuibyshev Reservoir Kuybyshev Reservoir or Kuybyshevskoye Reservoir (russian: Ку́йбышевское водохрани́лище, Kuybyshevskoye Vodokhranilishche), sometimes called Samara Reservoir and informally called Kuybyshev Sea, is a reservoir of ...

. This fish can reach a length of SL. Life span is about one year.

Etymology

This species was named after the English author and naturalist Gerald Durrell (1925-1995).

References

Benthophilus Fish described in 2004 Fish of Europe Fish of Russia {{Gobiidae-stub