site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
---|---|---|---|---|---|---|---|---|---|
A | Switzerland (Schweiz) | 2455![]() | 1913 or earlier | freshwater | Graff Lvon (1913): 118 | ||||
B | Leningrad Province (Sankt-Peterburg, Saint Petersburg), Russia | 3893![]() | 1926 or earlier | Leningrad province. | Nasonov NV (1926): abstract | ||||
C | Almenara, Spain | 5116![]() | Sep 1929 | Almenara. | Gieysztor M (1931): 142 |