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Pregolya (Pregel River), Russia
latitude: 54.688988
longitude: 20.374487
Precision of location: Alexandria Digital Library (with NGA GNDB data)
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Gieysztoria cuspidata | 1902 or earlier | Ostpreussen: Teich bei Linkonen, im Pregel u. Flüsschen bei Neuhausen |