Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
40773
| OR | | Umpqua drainage | 1997 |
17100303
| Umpqua | collected |
40656
| OR | | upper Klamath drainage | 1993 |
18010200
| Klamath | established |
40739
| OR | | upper Klamath Lake basin in Oregon | 1997 |
17100307
| Upper Rogue | established |
40628
| OR | | state non-specific | 1994 |
17000000
| Pacific Northwest Region | established |
1635435
| OR | Clackamas | Huxley Lake | 2017 |
17090011
| Clackamas | unknown |
630597
| OR | Klamath | Upper Klamath Lake | 1979 |
18010203
| Upper Klamath Lake | established |
630599
| OR | Klamath | Upper Klamath Lake | 1995 |
18010203
| Upper Klamath Lake | established |
630600
| OR | Klamath | Upper Klamath Lake | 2005 |
18010203
| Upper Klamath Lake | established |
630598
| OR | Klamath | Upper Klamath Lake near Modoc Point | 1992 |
18010203
| Upper Klamath Lake | established |
40774
| OR | Linn | Willamette drainage | 1997 |
17090006
| South Santiam | collected |
295845
| OR | Malheur | Malheur River at RM 15 | 2006 |
17050117
| Lower Malheur | established |
295844
| OR | Malheur | Malheur River at RM 2 | 2006 |
17050117
| Lower Malheur | established |
295243
| OR | Malheur | Malheur River below Juntura | 2006 |
17050117
| Lower Malheur | established |
40666
| OR | Malheur | unnamed irrigation ditch (near Foothills Drive, Ontario, OR) Malheur River, Snake River drainage | 1995 |
17050117
| Lower Malheur | established |
166850
| OR | Multnomah | McCarthy Creek, just upstream of Multnomah North. This property is on highway 30 between Portland and Scappoose. | 2006 |
17090012
| Lower Willamette | collected |
166849
| OR | Multnomah | Metro property known as Multnomah North on the west Bank of Multnomah Channel. This property is on highway 30 between Portland and Scappoose. | 2006 |
17090012
| Lower Willamette | collected |