: the species is currently present in 1 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: Asia: known only from the ancient Lake El'gygytgyn located in the headwaters of the Enmyvaam River, Anadyr River catchment in central Chukotka, Russia.
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