Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
29429
| CA | San Diego | Lake Cuyamaca, near San Diego | 1891 |
18070304
| San Diego | established |
34885
| MA | | state non-specific | 1992 |
01000000
| New England Region | established |
40586
| OR | Clackamas | Lake Oswego | 1946 |
17090012
| Lower Willamette | established |
40587
| OR | Lane/Douglas | Siltcoos Lake, south of Florence, east of hwy 101 | 1946 |
17100207
| Siltcoos | established |
40591
| OR | Multnomah | Willamette River at Portland | 1908 |
17090012
| Lower Willamette | collected |
40560
| OR | Polk | Willamette River at Salem | 1893 |
17090007
| Middle Willamette | collected |
43503
| TX | Hutchinson | Meredith Reservoir | 1985 |
11090105
| Lake Meredith | established |
43614
| TX | Moore | Meredith Reservoir | 1985 |
11090105
| Lake Meredith | established |
43613
| TX | Potter | Merideth Reservoir | 1985 |
11090105
| Lake Meredith | established |