Williamstown, Massachusetts, USA
latitude: 42.712002 42°42'43.21"N
longitude: -73.204002 73°12'14.41"W
[Precision of location: Alexandria Digital Library (with USGS GNIS data)]
[Site Named Here by name of site (or city, etc.)]
Planaria simplissima Curtis, 1900 | 1900 or earlier | from mountain stream. |
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