| Sphalloplana (Speophila) hubrichti Hyman, 1945 | | w | primary taxonomic authority (describer) | 479 |
| Sphalloplana alabamensis Hyman, 1945 | | w | primary taxonomic authority (describer) | |
| Sphalloplana (Sphalloplana) kansensis Hyman, 1945 | | w | primary taxonomic authority (describer) | 478 |
| Sphalloplana virginiana Hyman, 1945 | | - | primary taxonomic authority (describer) | 477 |
| Fonticola gracilis monopharyngea (Hyman, 1945) | | w | primary taxonomic authority (describer) | |
| Phagocata gracilis monopharyngea Hyman, 1945 | | w | primary taxonomic authority (describer) | |
| Phagocata monopharyngea Hyman, 1945 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Phagocata gracilis (Haldeman, 1840) | [with synonyms] | w | other taxonomic work | 476 |
| Sphalloplana (Sphalloplana) percoeca (Packard, 1879) | [with synonyms] | w | other taxonomic work | 476 |
| Sphalloplana (Speophila) virginiana Hyman, 1945 | [with synonyms] | w | primary taxonomic authority (describer) | |