site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
---|---|---|---|---|---|---|---|---|---|
A | Hokkaido Island (Yesso, Ezo, Yezo, Yeso), Japan | 4573 map | 1962 or earlier | default type | freshwater | Ichikawa A, Kawakatsu M (1963): | |||
B | Hidaka-sammyaku (Hidaka mountains, Hitaka), Japan | 4536 map | 1963 or earlier | default type | freshwater | Hokkaidô (Mt. Apoi in the Hidaka Mountains). | Ichikawa A, Kawakatsu M (1963): from Kawakatsu 1969 (citation)- p. 66 |