: the species is currently present in 11 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.
: Asia: river basin of the seas of Japan, Okhotsk, the Pacific coasts of Japan,Hokkaido, Ryukyu, Taiwan, rivers of Korea, continental China and the Philippines (Ref. 26334
); Viet Nam (Ref. 89724
). Introduced to the USA (Washington, Columbia and Portland, Oregon) (Ref. 92840
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