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Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
| Scroll through list of sites as necessary. | site | collection date | depth | substrate | salin | locality kind | comments | reference |
|---|---|---|---|---|---|---|---|---|
| A | Rebun Island, Japan | 1974 or earlier | North Hokkaido including the Okhotsk seaboard district. Rebun Islands. | Kawakatsu M (1974) 309 | ||||
| B | Rishiri Island, Japan | 1969 or earlier | freshwater | Middle and South Hokkaaidô (including Rishiri Island). | Kawakatsu M (1969) 70 | |||
| C | Rishiri-to (Risiri Sima, Risirizima), Japan | 1974 or earlier | North Hokkaido including the Okhotsk seaboard district. Rishiri and Rebun Islands on the Sea of Japan. | Kawakatsu M (1974) 309 | ||||
| D | Lake Shikotsuko, Hokkaidō, Japan | 1969 or earlier | freshwater | in the vicinity of Lake Shikotsuko in Middle Hokkaaidô | Kawakatsu M (1969) 70 | |||
| E | Hokkaido Island (Yesso, Ezo, Yezo, Yeso), Japan | 1969 or earlier | freshwater | Middle and South Hokkaaidô (including Rishiri Island). | Kawakatsu M (1969) 70 | |||
| F | Sakhalin Island (Ostrov Sakhalin, Saghalien, Karafuto), Russia | 1974 or earlier | South Sakhalin. | Kawakatsu M (1974) 309 | ||||
| G | Akan National Park, Hokkaido, Japan | 1974 or earlier | East Hokkaido (the Akan National Park and the Shiretoko Peninsula). | Kawakatsu M (1974) 308 | ||||
| H | Shiretoko-hanto (Shiretoko peninsula), Hokkaido, Japan | 1974 or earlier | East Hokkaido (the Akan National Park and the Shiretoko Peninsula). | Kawakatsu M (1974) 308 | ||||
| I | Chishima-retto (Kuril Islands, Bol'shaya Kuril'skaya), Russia | 1974 or earlier | South and Middle Kuril Islands (probably including Kunashiri and Itrup Islands). | Kawakatsu M (1974) 309 | ||||
| J | north Kuril Islands, Russia | 1974 or earlier | North Kuril Islands. | Kawakatsu M (1974) 309 | ||||
| K | Poluostrov Kamchatka (Kamchatka Peninsula, Kamchatskiya, Kamtschatka, Kamtchatka), Russia | 1916 or earlier | default type | Northeast Siberia and Kamchatka. | Zabussoff H (1916) from Kawakatsu 1969 (citation) and from Kawakatus 1974 (citation)}309 | |||