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 | Plöner Lake (Grosser Ploner See, Ploner, Plönersee, Plöner See, Great Lake Plön), Germany | 1893 or earlier | default type | Zacharias O (1893) Bush card | ||||
| B | Volga River, Russia | 1900 or earlier | Zykoff W (1900) abstract |