Shawnee National Forest, Union County, Illinois, USA
latitude: 37.494499 37°29'40.2"N
longitude: -89.383102 89°22'59.17"W
[Precision of location: gauged from chart or map]
[Site Named Here by name of site (or city, etc.)]
Phagocata gracilis (Haldeman, 1840) | 1966 or earlier | Elm Spring, in Pine Hills area of Shawnee National Forest, moderate current, 13.2 degrees C., pH 7.3. Under stones many specimens, some mature, besides less numerous Procotyla fluviatilis. | ||
Procotyla fluviatilis Leidy, 1857 | 1966 or earlier | Elm Spring, in Pine Hills area of Shawnee National Forest, moderate current, 13.2 degrees C., pH 7.3. Under stones. |
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