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Huron River, at the Delhi dam, Washtenaw County, Michigan, USA
latitude: 42.3339
longitude: -83.809898
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
| Dugesia tigrina | Sep 28, 1940 | several asexual specimens of the spotted type under stones.. Water temperature 20.1 degrees C. Swift current. |