In Eurasia it is mentioned as non-indigenous in the upper streams of the Danube river, the Dnieper river, the Rhine-Main system (North Sea basin), and the Vistula.
During the period of 2008–2010, this species was registered in the Meuse River on the border between Belgium and Netherlands.

Proterorhinus semilunaris was introduced to the St. Clair River from eastern Europe in Ballast water.
 It is possible that it spread to Canada and the Great Lakes through use of it as live bait.
By the early 2000s it had spread north to the Minnesota-Wisconsin border and East to the border of New York and Pennsylvania.
In Eurasia it is mentioned as non-indigenous in the upper streams of the Danube river, the Dnieper river, the Rhine-Main system (North Sea basin), and the Vistula. During the period of 2008–2010, this species was registered in the Meuse River on the border between Belgium and Netherlands.
Proterorhinus semilunaris was introduced to the St. Clair River from eastern Europe in Ballast water.  It is possible that it spread to Canada and the Great Lakes through use of it as live bait. By the early 2000s it had spread north to the Minnesota-Wisconsin border and East to the border of New York and Pennsylvania.
Western tubenose goby