| Pseudogeoplana | bilinearis | (Darwin, 1844) | |
| Geoplana | bilinearis | (Darwin, 1844) | |
| Planaria | bilinearis | Darwin, 1844 | |
| Leptoplaninae | Diplanaria | Darwin, 1844 | |
| Leptoplanidae | Diplanaria | Darwin, 1844 | |
| Barreirana | elegans | Darwin, 1844 | |
| Pseudogeoplana | elegans | Darwin, 1844 | |
| Planaria | elegans(2) | Darwin, 1844 | |
| Geoplana | elongata | (Darwin, 1844) | |
| Pseudogeoplana | elongata | (Darwin, 1844) | |
| Planaria | elongata | Darwin, 1844 | |
| Leptoplana | formosa | (Darwin, 1844) | |
| Leptoplana | formosa | (Darwin, 1844) | |
| Planaria | formosa | Darwin, 1844 | |
| Planaria | incisa | Darwin, 1844 | |
| Centrostomum | incisum | (Darwin, 1844) | |
| Cercyra | macrostoma | (Darwin, 1844) | |
| Procerodella | macrostoma | (Darwin, 1844) | |
| Procerodes | macrostoma | (Darwin, 1844) | |
| Cephalolepta | macrostomum | (Darwin, 1844) | |
| Planaria | macrostomum | Darwin, 1844 | |
| Pseudogeoplana | maculata | (Darwin, 1844) | |
| Geoplana | maculata | (Darwin, 1844) | |
| Planaria | maculata(1) | Darwin, 1844 | |
| Polycladus | maculatus | (Darwin, 1844) | |
| Planaria | nigrofusca | Darwin, 1844 | |
| Pseudogeoplana | nigrofusca | (Darwin, 1844) | |
| Geoplana | nigrofusca | (Darwin, 1844) | |
| Leptoplana | notabilis | Darwin, 1844 | |
| Leptoplana | notabilis | (Darwin, 1844) | |
| Diplanaria | notabilis | Darwin, 1844 | |
| Diplanaria | notabilis | Darwin, 1844 | |
| Planaria | oceanica | Darwin, 1844 | |
| Eurylepta | oceanica | (Darwin, 1844) | |
| Nautiloplana | oceanica | Darwin, 1844 | |
| Carenoceraeus | oceanica | (Darwin, 1844) | |
| Eurylepta | oceanica | (Darwin, 1844) | |
| Planaria | pallida | Darwin, 1844 | |
| Pseudogeoplana | pallida | (Darwin, 1844) | |
| Geoplana | pallida | (Darwin, 1844) | |
| Pseudogeoplana | pulla | (Darwin, 1844) | |
| Planaria | pulla | Darwin, 1844 | |
| Geoplana | pulla | Darwin, 1844 | |
| Planaria | semilineata | Darwin, 1844 | |
| Geoplana | semilineata | (Darwin, 1844) | |
| Pseudogeoplana | semilineata | (Darwin, 1844) | |
| Polycladus | semilineatus | (Darwin, 1844) | |
| Australopacifica | tasmaniana | (Darwin, 1844) | |
| Tasmanoplana | tasmaniana | (Darwin, 1844) | |
| Planaria | tasmaniana | Darwin, 1844 | |
| Geoplana | tasmaniana | (Darwin, 1844) | |
| Polycelis | tasmanica | Darwin, 1844 | |
| Geoplana | vaginuloides | (Darwin, 1844) | |
| Planaria | vaginuloides | Darwin, 1844 |
54 names, including those in new combination. (Max listing set to 900)