Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
27913
| AZ | | state non-specific | 1994 |
15000000
| Lower Colorado Region | collected |
27450
| AZ | Mohave | Lake Mead | 1973 |
15010005
| Lake Mead | failed |
28387
| CA | | Sacramento River | 1879 |
18020005
| Sacramento Headwaters | failed |
28394
| CA | | San Francisco Bay, easterly shore | 1882 |
18050004
| San Francisco Bay | failed |
28395
| CA | | San Francisco vicinity | 1896 |
18050004
| San Francisco Bay | failed |
28388
| CA | Alameda | Alameda Creek [southeast San Francisco Bay between Hayward and Fremont, CA] | 1879 |
18050004
| San Francisco Bay | failed |
28385
| CA | Alameda | inlet of San Francisco Bay near Oakland | 1874 |
18050004
| San Francisco Bay | failed |
29487
| CA | San Francisco | Golden Gate Park from a faucet | 1979 |
18050006
| San Francisco Coastal South | failed |
29485
| CA | San Francisco | San Francisco, Golden Gate Park, Water Reclamation Plant | 1978 |
18050006
| San Francisco Coastal South | failed |
29482
| CA | San Francisco | Stow Lake, Golden Gate Park | 1978 |
18050002
| San Pablo Bay | failed |
29484
| CA | San Francisco | Stow Lake, Golden Gate Park | 1978 |
18050002
| San Pablo Bay | failed |
29483
| CA | San Francisco | Stow Lake, Golden Gate Park | 1978 |
18050002
| San Pablo Bay | failed |
29486
| CA | San Francisco | Stow Lake, Golden Gate Park | 1978 |
18050002
| San Pablo Bay | failed |
28390
| CA | Solano | Suisun Bay [bay east of San Pablo Bay], CA | 1882 |
18050001
| Suisun Bay | failed |
38955
| NV | Clark | Lake Mead National Recreation Area | 1973 |
15010005
| Lake Mead | failed |
27451
| NV | Clark | Lake Mead, Overton Arm | 1973 |
15010005
| Lake Mead | failed |
610382
| PA | Erie | Nnt Little Conneaut Creek, Ashtabula. | 1997 |
05010004
| French | unknown |