| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
166633
| IL | Adams | Mississippi River RM 364, Pool 20 | 1986 |
07110001
| Bear-Wyaconda | established |
|
157995
| IL | Adams | Mississippi River vicinity of Lock and Dam 20 | 1999 |
07110001
| Bear-Wyaconda | established |
|
158003
| IL | Adams | Mississippi River vicinity of Lock and Dam 20 | 1999 |
07110001
| Bear-Wyaconda | established |
|
624144
| IL | Hancock | Mississippi River | 2013 |
07110001
| Bear-Wyaconda | unknown |
|
624147
| IL | Hancock | Mississippi River | 2013 |
07110001
| Bear-Wyaconda | unknown |
|
1886409
| IL | Hancock | Mississippi River at Keokuk, 5.95 river km downstream (southwest) of the US 136 bridge crossing the Mississippi River AND 1.9 river km downstream (southwest) of the confluence of the Des Moines and Mississippi rivers | 2016 |
07110001
| Bear-Wyaconda | established |