: the species is currently present in 1 of them (endemic, native, introduced);
: possible in 2 of them (stray, questionable);
: absent from 0 of them (extirpated, not established, misidentification, error).
: all reports listed together.
Distribution: Europe: Tyrrhenian basin from Magra to Garigliano drainages in Italy. Introduced in Lake Scanno (Pescara drainage, Italy), which is the only locality where it is known to survive. Also survived some time in Lake Massaciuccoli (Serchio drainage [north of Pisa], Italy) but the present status of this population is still unknown.
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