| Notoplana dubia (Schmarda, 1859) | prior to 1859 |  |  |  | 
| Paraplanocera oligoglena (Schmarda, 1859) | prior to 1859 |  |  |  | 
| Stylochocestus gracilis Laidlaw, 1904 | prior to 1904 |  |  |  | 
| Macrostomum ceylanicum Schmarda, 1859 | 1859 or earlier |  |  | Ceylon (? marin). | 
| Pelmatoplana sarasinorum Graff, 1899 | prior to 1899 |  |  |  | 
| Caridinicola platei Fernando, 1952 | 1952 or earlier |  |  | from the branchial cavities of freshwater Atyid prawns in Ceylon. | 
| Monodiscus macbridei Fernando, 1952 | 1952 or earlier |  |  | from the branchial cavities of freshwater Atyid prawns in Ceylon. | 
| Dolichoplana feildeni Graff, 1899 | 1898 or earlier |  |  |  | 
| Leptoplana gardineri Laidlaw, 1904 | 1902 |  |  |  | 
| Leptoplana gardineri Laidlaw, 1904 | 1902 |  |  |  | 
| Paraplanocera aurora Laidlaw, 1903 | 1902 |  |  |  | 
| Paraplanocera aurora Laidlaw, 1903 | 1902 |  |  |  | 
| Prosthiostomum singulare Laidlaw, 1904 | 1902 |  |  |  | 
| Prosthiostomum singulare Laidlaw, 1904 | 1902 |  |  |  | 
| Stylochocestus gracilis Laidlaw, 1904 | 1902 |  |  |  | 
| Stylochocestus gracilis Laidlaw, 1904 | 1902 |  |  |  | 
| Stylochus ceylanicus Laidlaw, 1904 | 1902 |  |  |  | 
| Thalamoplana herdmani Laidlaw, 1904 | 1902 |  |  |  | 
| Pelmatoplana maculosa Whitehouse, 1919 | 1919 or earlier |  |  |  | 
| Monodiscus parvus Plate, 1914 | 1914 or earlier |  |  |  | 
|  | 1914 or earlier |  |  |  | 
| Pseudartiocotylus ceylonicus Ikeda, 1911 | 1911 or earlier |  |  |  | 
| Discoplana gigas Schmarda, 1859 | 1859 or earlier |  |  | Indian Ocean at Sri Lanka. | 
| Leptoplana polycyclia (Schmarda, 1859) | 1859 or earlier |  |  | Belligamme, Sri Lanka. | 
| Pseudoceros affinis (Kelaart, 1858) | 1876 or earlier |  |  | Sri Lanka. | 
| Pseudoceros atraviridis (Collingwood, 1876) | 1876 or earlier |  |  | Sri Lanka. | 
| Pseudoceros fuscogriseus Hyman, 1959 | 1995 or earlier |  |  | Sri Lanka. | 
| Caridinicola indica Annandale, 1912 | 1914 or earlier |  |  |  | 
| Bipalium depressum Ritter-Zahony, 1905 | 1905 or earlier |  |  | Ceylon | 
| Pelmatoplana sondaica (Loman, 1890) | 1898 or earlier |  |  | Buitenzorg auf Java, Singkarah auf Sumatra, auch Singapore, Ceylon und Madagascar. | 
| Anisorhynchodemus nematoides (Loman, 1890) | 1898 or earlier |  |  | Buitenzorg auf Java, auch Ceylon. | 
| Dolichoplana feildeni Graff, 1899 | 1898 or earlier |  |  | Buitenzorg und Tjibodas auf Java, Singapore, aber auch Ceylon, Cayenne, Barbados. | 
| Prosthiostomum singulare Laidlaw, 1904 | 1904 or earlier |  |  | One specimen from Ceylon (Gardiner). | 
| Pelmatoplana trimeni Graff, 1899 | 1896 or earlier |  |  |  | 
| Humbertium ceres (Moseley, 1874) | prior to 2000 |  |  |  | 
| Humbertium diana (Humbert, 1862) | prior to 2000 |  |  |  | 
| Humbertium phebe Humbert, 1862 | prior to 2000 |  |  |  | 
| Humbertium proserpina (Humbert, 1862) | prior to 2000 |  |  |  |