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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 | Observatory Mountain, Charlottesville, Virginia, USA | Jul 10, 1929 | mud | freshwater | type locality | in the mud in the overflow from Edgemont Dairy water-basin on the south side of Observatory Mountain. | Kepner WA, Carter JS (1931) 114; also from Nuttycombe JW, Waters AJ 1938 (citation)- p 238 | |
| B | Southeastern New York State, USA | prior to 1987 | freshwater | 12 specimens from stream surface sediments. | Kolasa J, Strayer D, Bannon-O'Donnell E (1987) 127 |