| Paraplanocera rotumanensis Laidlaw, 1903 | | - | primary taxonomic authority (describer) | 4-7 |
| Latocestus pacificus Laidlaw, 1903 | | - | primary taxonomic authority (describer) | 8 |
| Pseudoceros haddoni Laidlaw, 1903 | | - | primary taxonomic authority (describer) | |
| Planaria nigrocincta Laidlaw, 1903 | | w | primary taxonomic authority (describer) | |
| Stylochoidea Latocestidae Laidlaw, 1903 | | w | primary taxonomic authority (describer) | 7 |
| Pseudoceros haddoni (Laidlaw, 1903) | [with synonyms] | w | primary taxonomic authority (describer) | 3 |
| Pseudoceros regalus Laidlaw, 1903 | [with synonyms] | w | primary taxonomic authority (describer) | 3 |
| Paraplanocera rotumanensis Laidlaw, 1903 | [with synonyms] | w | primary taxonomic authority (describer) | 3 |
| Planoceridae Paraplanocera Laidlaw, 1903 | | w | primary taxonomic authority (describer) | 3, 4 |