Proisotoma bayouensis- Proisotoma bulbosa
- Proisotoma clavipila
- Proisotoma dubia
- Proisotoma excavata
- Proisotoma frisoni
- Proisotoma immersa
- Proisotoma longispina
- Proisotoma mackenziana
- Proisotoma minima
- Proisotoma minuta
- Proisotoma muskegis
- Proisotoma obsoleta
- Proisotoma ripicola
- Proisotoma schoetti
- Proisotoma sepulchralis
- Proisotoma subminuta
- Proisotoma tenella
- Proisotoma titusi
- Proisotoma veca
- Proisotoma vernoga
- Proisotoma vetusta