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Otter Creek, at La Salle, Monroe County, Michigan, USA
latitude: 41.870499
longitude: -83.457603
Precision of location: Gauged from chart or map
Site Named Here: By name of site (or city, etc.)
| Phagocata velata | Apr 25, 1941 | Five immature from three places. Otter Creek and tributaries, near La Salle, Monroe County. In three places (at La Salle and near Ida), in swift as well as sluggish parts, in cold water. Water temperature 12.2 and14.1 degrees C. |