| Euplana gracilis (Girard, 1850) | | - | primary taxonomic authority (describer) | |
| Leptoplana gracilis (Girard, 1850) | | - | primary taxonomic authority (describer) | |
| Leptoplana variabilis (Girard, 1850) | | - | primary taxonomic authority (describer) | |
| Eustylochus ellipticus (Girard, 1850) | | - | primary taxonomic authority (describer) | |
| Stylochus ellipticus (Girard, 1850) | | - | primary taxonomic authority (describer) | |
| Prosthiostomum gracile Girard, 1850 | | - | primary taxonomic authority (describer) | |
| Bdelloura candida (Girard, 1850) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Fovia warreni (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Procerodidae Procerodes Girard, 1850 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Procerodes warreni (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Procerodes wheatlandi Girard, 1850 | | w | primary taxonomic authority (describer) | |
| Dendrocoelum pulcherrimum Girard, 1850 | | w | primary taxonomic authority (describer) | |
| Dendrocoelum superbum Girard, 1850 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Dugesia gonocephaloides Girard, 1850 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Galeocephala superba (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Polycelis variabilis Girard, 1850 | | w | primary taxonomic authority (describer) | |
| Elasmodes gracilis (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Elasmodes gracilis (1) (Girard, 1850) | | - | primary taxonomic authority (describer) | |
| Vortex candida Girard, 1850 | | w | primary taxonomic authority (describer) | |
| Vortex warreni Girard, 1850 | | w | primary taxonomic authority (describer) | |
| Euplana gracilis (Girard, 1850) | | - | primary taxonomic authority (describer) | 251 |
| Leptoplana gracilis (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Leptoplana variabilis (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Eustylochus ellipticus (Girard, 1850) | | w | primary taxonomic authority (describer) | |
| Stylochus ellipticus (Girard, 1850) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Stylochopsis ellipticus (Girard, 1850) | | w | primary taxonomic authority (describer) | |
