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Flathead Lake, Montana, USA
latitude: 47.754799
longitude: -114.166397
Precision of location: Gauged from chart or map
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Dendrocoelopsis vaginata | Mar, Jul 1933 | stones | specimens received in 1933 from Dr. R. T. Young of the University of Montana. | |
| coronata coronata | Sep 3, 1967 | tributary of Flathead Lake, crossing State Road 35 on east side of lake, 12 road miles north of junction with U.S. Highway 93; water clear, fast, 8.7 degrees C., pH 7.9; many specimens of various sizes, one mature, under stones. |