: the species is currently present in 4 of them (endemic, native, introduced);
: possible in 0 of them (stray, questionable);
: absent from 0 of them (extirpated, not established, misidentification, error).
: all reports listed together.
Distribution: Europe: Italian rivers of the northern Adriatic, northwards from the Marches, and including the Po basin (with Swiss tributaries) and Venezia, as well as the Dalmatian rivers Zrmanje and Krka.
The map in this page was supported by BioFresh that has received funding from the
European Union's Seventh Programme for research, technological development and demonstration under grant agreement No 226874