| Nominal Species (n = 4) | Present allocation (n = 4) | Ref. |
|---|---|---|
| Clappia cahabensis Clench, 1965 | Clappia cahabensis | 19 |
| Fluminicola coloradoensis Morrison, 1940 | Fluminicola coloradoensis | 19 |
| Fluminicola minutissimus Pilsbry, 1907 | Fluminicola minutissimus | 19 |
| Fluminicola modoci Hannibal, 1912 | Fluminicola modoci | 19 |