Collecting site
Delaware River, near Philadelphia, Pennsylvania, USA
latitude: 40.0798 40°4'47.28"N
longitude: -74.884804 74°53'5.29"W
[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]
Collected here:
Hydrolimax grisea Haldeman, 1843 | 1851 or earlier | | | check exact location in reference. |
Hydrolimax grisea Haldeman, 1843 | 1938 or earlier | | | collected by Dr. Charles Hadley near Montclair. exact location unknown. |