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 | Charkov (Kharkiv, Charkow, Khar'kov, Kharkow), Ukraine | 1904 or earlier | freshwater | type locality | in flowing water between aquatic plants. | Markow M (1904) ; Markow 1904 (citation); from Graff L v 1913 (citation)- p 17 |