| Convoluta langerhansi Graff, 1882 | prior to 1882 | intertidal | beach, rock | under rock |
| Proxenetes rosaceus Graff, 1882 | 1882 or earlier | | | |
| Proxenetes gracilis Graff, 1882 | 1913 or earlier | | | beach water. |
| Trigonostomum coronatum (Graff, 1882) | 1882 or earlier | | | |
| Polycystis naegelii Kölliker, 1845 | 1913 or earlier | | | living among plants in the litoral zone. |
| Monoophorum pleiocelis Graff, 1911 | 1882 or earlier | | | |
| Monocelis lineata (Müller, 1773) | 1913 or earlier | | | |
| Monocelis longiceps (Duges, 1830) | 1913 or earlier | | | |
| Monocelis unipunctata (1) Fabricius, 1826 | 1913 or earlier | | | |
| Cylindrostoma pleiocelis Graff, 1882 | 1882 or earlier | | | on algae. |
| Microplana terrestris (Müller, 1773) | 1957 | | | terrestrial. |
| Microplana hovassei (de Beauchamp, 1934) | 1957 | | | terrestrial. |
| Geoplana mexicana Hyman, 1939 | 1958 or earlier | | | Gueymadas and São Vicente, Île Medere (Ilha da Madeira), Portugal |