| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Sagana village, Kenya | 1620 | Dec 6, 1971 | type locality | freshwater | Stagnant ditch at Sagana, just at the edge of town, on road to Embu. 6 m wide and 0.6 m deep; choked with aquatic vegetation. 2 specimens. | Young JO (1977): 6 |