| Vorticeros pulchellum Schmidt, 1852 | Mar, Apr 1873 | littoral | | |
| Heterochaerus langerhansi (Graff, 1882) | | | tide pools, rocky shores | |
| Convoluta convoluta (Abildgaard, 1806) | Mar, Apr 1873 | littoral | | |
| Amphiscolops cinereus (Graff, 1874) | Mar, Apr 1873 | littoral | | |
| Progyrator mamertinus (Graff, 1874) | Mar, Apr 1873 | littoral | | |
| Turbella klostermanni Graff, 1874 | Mar, Apr 1873 | | | |
| Monocelis protractilis Graff, 1874 | Mar, Apr 1873 | | | |
| Convoluta armata Graff, 1874 | Mar, Apr 1873 | | | |
| Convoluta cinereus Graff, 1874 | Mar, Apr 1873 | | | |
| Prostomum mamertinum Graff, 1874 | Mar, Apr 1873 | | | |
| Convoluta paradoxa Ørsted, 1843 | prior to 1882 | | | |
| Promesostoma ovoideum (Schmidt, 1852) | prior to 1882 | | | |
| Promesostoma solea (Schmidt, 1857) | prior to 1882 | | | found at the same places as Promesostoma ovoideum. |
| Proxenetes rosaceus Graff, 1882 | prior to 1882 | shallow | | Graff recognizes this form in one of his old sketches of Messina. |
| Macrorhynchus mamertinus (Graff, 1874) | prior to 1882 | | | very often between Ulven (Ulva), |
| Macrorhynchus naegelii (Kölliker, 1845) | prior to 1882 | | | |
| Hyporhynchus venenosus (Uljanin, 1870) | prior to 1882 | | | |
| Hyporhynchus penicillatus (Schmidt, 1857) | prior to 1882 | | | everywhere but rare |
| Plagiostomum reticulatum (Schmidt, 1852) | prior to 1882 | | | in Ulven (Ulva) |
| Plagiostomum koreni Jensen, 1878 | prior to 1882 | | | 1 specimen in a tide pool. |
| Plagiostomum siphonophorum (Schmidt, 1852) | prior to 1882 | | | very frequently found. |
| Vorticeros auriculatum (Müller, 1784) | prior to 1882 | | | |
| Cylindrostoma klostermanni (1) Graff, 1874 | Aug 1876 | | | frequently found in Ulven (Ulva). |
| Proporus venenosus (Schmidt, 1852) | 1878 or earlier | | | |
| Hypotrichina sicula Calandruccio, 1897 | 1897 or earlier | | sand | found near the Torre di Faro (beacon) near Messina |
| Hypotrichina circinnata Calandruccio, 1897 | 1897 or earlier | | sand | found near the Torre di Faro (beacon) near Messina |
| Proxenetes sensitivus Uljanin, 1870 | 1913 or earlier | | | Graff notes that it is probably found at Messina. |
| Promesostoma marmoratum marmoratum (Schultze, 1851) | 1913 or earlier | | | very active, in marine and brackish water. |
| Promesostoma marmoratum (Schultze, 1851) | 1913 or earlier | | | very active, in marine and brackish water. |
| Promesostoma ovoideum ovoideum Graff, 1905 | 1913 or earlier | | | |
| Promesostoma solea solea Graff, 1905 | 1913 or earlier | | | |
| Hyporcus venenosus (Uljanin, 1870) | 1913 or earlier | | | |
| Trigonostomum penicillatum (Schmidt, 1857) | 1913 or earlier | | | |
| Polycystis mamertina (Graff, 1874) | 1913 or earlier | | | |
| Plagiostomum girardi (Schmidt, 1857) | 1913 or earlier | | | slow acting and swimming, in waste water and aquariums. |
| Vorticeros auriculatum (Müller, 1784) | 1913 or earlier | 0-35m | | littoral up to 35 m deep in Algen and Bryozoen. |
| Pseudostomum klostermanni (Graff, 1874) | 1913 or earlier | | | |
| Monocelis lineata (Müller, 1773) | 1913 or earlier | | | |
| Haplodiscus ussowi Sabussow, 1896 | 1899 or earlier | | | |
| Stylochus luteus Graff, 1882 | 1882 or earlier | | | Triest, Messina, Italy. |
| Haplodiscus ussowi Sabussow, 1896 | 1905 or earlier | | | Golf von Neapel und Messina. |