Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1458903
| OR | | state non-specific | 1994 |
17000000
| Pacific Northwest Region | unknown |
115686
| OR | Douglas | Stewart Park Pond, within Stewart Park, Roseburg | 1993 |
17100302
| South Umpqua | unknown |
115687
| OR | Jackson | Rogue River near Medford, Jackson County | 1993 |
17100308
| Middle Rogue | unknown |
115688
| OR | Klamath | Klamath River east of Klamath Falls | 1991 |
18010204
| Lost | unknown |
115684
| OR | Lane | Danebo Pond, city of Eugene | 1993 |
17090003
| Upper Willamette | unknown |
115685
| OR | Lane | Fern Ridge Reservoir, north arm (forebay) west of Eugene | 1993 |
17090003
| Upper Willamette | unknown |
253786
| OR | Lane | North Eugene pond | 2008 |
17090003
| Upper Willamette | established |
115683
| OR | Multnomah | Burlington Bottoms, northwest of Portland | 1992 |
17090012
| Lower Willamette | unknown |
115707
| OR | Multnomah | Burlington Bottoms, northwest of Portland | 1993 |
17090012
| Lower Willamette | unknown |
115708
| OR | Multnomah | Burlington Bottoms, northwest of Portland | 1994 |
17090012
| Lower Willamette | unknown |