| Phagocata gracilis monopharyngea Hyman, 1945 | | w | latest taxonomic authority | |
| Polycelis (Polycelis) coronata brevipenis Kenk, 1972 | [with synonyms] | w | primary taxonomic authority (describer) | 26 |
| Cura foremanii (Girard, 1852) | [with synonyms] | w | other taxonomic work | 19 |
| Dugesia tigrina (Girard, 1850) | | w | other taxonomic work | 20-21 |
| Dugesia dorotocephala (Woodworth, 1897) | | w | other taxonomic work | 22 |
| Dugesia antillana Kenk, 1941 | | w | other taxonomic work | |
| Dugesia polychroa (Schmidt, 1861) | | w | other taxonomic work | |
| Polycelis (Polycelis) coronata coronata (Girard, 1891) | [with synonyms] | w | other taxonomic work | 25, 27 |
| Polycelis (Polycelis) coronata (Girard, 1891) | [with synonyms] | w | other taxonomic work | 25-27 |
| Polycelis (Polycelis) coronata borealis Kenk, 1953 | | w | other taxonomic work | 27 |
| Hymanella retenuova Castle, 1941 | | w | other taxonomic work | 31 |
| Phagocata oregonensis Hyman, 1963 | [with synonyms] | w | other taxonomic work | 32 |
| Phagocata monopharyngea Hyman, 1945 | [with synonyms] | w | other taxonomic work | 33 |
| Phagocata vernalis Kenk, 1944 | [with synonyms] | w | other taxonomic work | 34 |
| Hydrolimax bruneus Girard, 1891 | | w | other taxonomic work | 67 |
| Rectocephala exotica Hyman, 1953 | [with synonyms] | w | other taxonomic work | 65 |
| Phagocata velata (Stringer, 1909) | [with synonyms] | w | other taxonomic work | 35 |
| Phagocata bulbosa Kenk, 1970 | | w | other taxonomic work | 36 |
| Phagocata bursaperforata Darlington, 1959 | [with synonyms] | w | other taxonomic work | 37 |
| Phagocata tahoena Kawakatsu, 1968 | [with synonyms] | w | other taxonomic work | 38 |
| Planaria dactyligera dactyligera Kenk, 1935 | | w | other taxonomic work | 28 |
| Planaria dactyligera Kenk, 1935 | | w | other taxonomic work | 28-29 |
| Planaria occulta Kenk, 1969 | | w | other taxonomic work | 30 |
| Phagocata crenophila Carpenter, 1969 | | w | other taxonomic work | 39 |
| Phagocata crenophila Carpenter, 1969 | | w | other taxonomic work | 39 |
| Phagocata morgani morgani Stevens & Boring, 1906 | [with synonyms] | w | other taxonomic work | 40 |
| Phagocata morgani polycelis (Kenk, 1935) | [with synonyms] | w | other taxonomic work | 41 |
| Phagocata nivea Kenk, 1953 | [with synonyms] | w | other taxonomic work | 42 |
| Phagocata gracilis (Haldeman, 1840) | [with synonyms] | w | other taxonomic work | 43 |
| Phagocata woodworthi Hyman, 1937 | [with synonyms] | w | other taxonomic work | 44 |
| Sphalloplana alabamensis Hyman, 1945 | | w | other taxonomic work | 46 |
| Sphalloplana (Sphalloplana) georgiana Hyman, 1954 | | w | other taxonomic work | 47 |
| Sphalloplana virginiana Hyman, 1945 | | - | other taxonomic work | 48 |
| Sphalloplana (Sphalloplana) kansensis Hyman, 1945 | | w | other taxonomic work | 49 |
| Sphalloplana (Speophila) pricei Hyman, 1937 | | w | other taxonomic work | 50 |
| Sphalloplana buchanani Hyman, 1937 | | w | other taxonomic work | 51 |
| Sphalloplana (Speophila) hubrichti Hyman, 1945 | | w | other taxonomic work | 52 |
| Sphalloplana (Sphalloplana) hoffmasteri (Hyman, 1954) | | w | other taxonomic work | 53 |
| Sphalloplana (Speophila) weingartneri Kenk, 1970 | [with synonyms] | w | other taxonomic work | 54 |
| Sphalloplana mohri Hyman, 1938 | | w | other taxonomic work | 55 |
| Kenkia rhynchida Hyman, 1937 | | w | other taxonomic work | 56 |
| Macrocotyla glandulosa Hyman, 1956 | | w | other taxonomic work | 57 |
| Dendrocoelopsis vaginata Hyman, 1935 | | w | other taxonomic work | 58 |
| Dendrocoelopsis piriformis Kenk, 1953 | | w | other taxonomic work | 59 |
| Dendrocoelopsis alaskensis Kenk, 1953 | | w | other taxonomic work | 60 |
| Dendrocoelopsis hymanae Kawakatsu, 1968 | | w | other taxonomic work | 61 |
| Dendrocoelopsis americana (Hyman, 1939) | | w | other taxonomic work | 62 |
| Procotyla fluviatilis Leidy, 1857 | [with synonyms] | w | other taxonomic work | 63 |
| Procotyla typhlops Kenk, 1935 | | w | other taxonomic work | 64 |
| Planaria fuliginosus Leidy, 1852 | | w | other taxonomic work | 66 |
| Planaria unionicola Woodworth, 1897 | | w | other taxonomic work | 66 |
| Sphalloplana (Speophila) buchanani Hyman, 1937 | [with synonyms] | w | other taxonomic work | 51 |
| Phagocata morgani (Stevens & Boring, 1906) | [with synonyms] | w | other taxonomic work | 40 |
| Paraplanaria dactyligera (Kenk, 1935) | [with synonyms] | w | other taxonomic work | 28-29 |
| Paraplanaria occulta (Kenk, 1969) | [with synonyms] | w | other taxonomic work | 30 |
| Fonticola percoecum (Packard, 1879) | | w | other taxonomic work | 45 |
| Sphalloplana (Sphalloplana) percoeca (Packard, 1879) | [with synonyms] | w | other taxonomic work | 45 |
| Fonticola percaeca (Packard, 1879) | | w | other taxonomic work | 45 |
| Dendrocoelum percoecum Packard, 1879 | | w | other taxonomic work | 45 |
| Sphalloplana (Polypharyngea) mohri (Hyman, 1938) | | w | other taxonomic work | 55 |
| Kenkia glandulosa (Hyman, 1956) | [with synonyms] | w | other taxonomic work | 57 |
| Planaria simplex Woodworth, 1896 | | w | other taxonomic work | 66 |
