Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
28804
| CA | | Pajaro drainage | 1976 |
18060002
| Pajaro | established |
28810
| CA | | Trinity River | 1976 |
18010211
| Trinity | eradicated |
28811
| CA | Del Norte-Humboldt | Klamath River | 1976 |
18010209
| Lower Klamath | collected |
29179
| CA | San Mateo | a reservoir on the Balanesi ranch at the site of the Mackay Radio Station at Lobitas Creek, about 6 miles south of the town of Half Moon Bay. | 1922 |
18050006
| San Francisco Coastal South | established |
28805
| CA | San Mateo | private reservoir near Lobitas Creek | 1922 |
18050006
| San Francisco Coastal South | established |
28806
| CA | San Mateo | private reservoir near Lobitas Creek | 1973 |
18050006
| San Francisco Coastal South | established |
29158
| CA | San Mateo | reservoir just south of Half Moon Bay | 1940 |
18050006
| San Francisco Coastal South | established |
29870
| CA | San Mateo | reservoir near Princeton, about 6 miles north of Half Moon Bay | 1940 |
18050006
| San Francisco Coastal South | established |
28631
| CA | San Mateo | San Mateo County | 1922 |
18050000
| San Francisco Bay | established |
28807
| CA | San Mateo | San Mateo County, ponds and reservoirs | 1973 |
18050000
| San Francisco Bay | established |
1737924
| CA | Santa Cruz | [No locality description provided; coordinates obscured by collector] | 2021 |
18060015
| Monterey Bay | |
1738076
| CA | Santa Cruz | [No locality description provided; coordinates obscured by collector] | 2022 |
18060015
| Monterey Bay | |
1698383
| CA | Santa Cruz | [No locality description provided] | 2018 |
18060015
| Monterey Bay | |
29857
| CA | Santa Cruz | Big Ranch Resrevoir, just north of Davenport | 1941 |
18050006
| San Francisco Coastal South | established |
29871
| CA | Santa Cruz | ponds of Mr. Jack Bandy at Bonny Doon | 1940 |
18050006
| San Francisco Coastal South | established |
29872
| CA | Santa Cruz | reservoir just north of the city of Santa Cruz | 1941 |
18060015
| Monterey Bay | established |
28808
| CA | Santa Cruz | Santa Cruz County, ponds and reservoirs | 1973 |
18060000
| Central California Coastal | established |