Collecting site
Illinois River, Illinois, USA
latitude: 38.970001     38°58'12"N
longitude: -90.454002     90°27'14.41"W
[Precision of location: Alexandria Digital Library (with USGS GNIS data)] 
[Site Named Here by name of island, bay, strait, lake, river, or stream, etc., named in source publication] 
Collected here:
| Planaria gonocephala Duges, 1830 | 1894-1895 |  |  | 11,664b, Station C; 13,069, Station C. | 
| Mesostoma ehrenbergii (Focke, 1836) | 1894-1895 |  |  | No. 13,521, Station L; No. 13,626, Illinois River. | 
| Dendrocoelum lacteum (Müller, 1773) | 1894-1895 |  |  | Station C; 13,166, small pool on sandy margin of Thompson's Lake near Station G. |