Overlapping markers can be separated by clicking on them.
Hovering the cursor over a marker will show the site's name.
Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
| site | collection date | depth | substrate | salin | locality kind | comments | reference | |
|---|---|---|---|---|---|---|---|---|
| A | France (Frankreich) | 1913 or earlier | Graff Lvon (1913) 43 | |||||
| B | Augustinerholzes near Basel, Switzerland | prior to 1894 | freshwater | type locality | found all summer. | Fuhrmann O (1894) 218-222, 233 |