| Polyposthides | affinis | Palombi, 1923 | |
| Polyposthides | affinis | Palombi, 1923 | |
| Stylochoplana | affinis | Palombi, 1940 | |
| Armatoplana | affinis | (Palombi, 1940) | |
| Stylochoplana | affinis | Palombi, 1940 | |
| Idioplana | australiensis (2) | Palombi, 1928 | |
| Leptoplana | bacteoalba | Palombi, 1939 | |
| Euryleptides | brasiliensis | Palombi, 1923 | |
| Euryleptides | brasiliensis | Palombi, 1923 | |
| Pseudoceros | caeruleopunctatus | Palombi, 1928 | |
| Pseudoceros | caeruleopunstatus | Palombi, 1928 | |
| Leptostylochus | capensis | Palombi, 1938 | |
| Leptostylochus | capensis | Palombi, 1938 | |
| Stylochoplana | caraibica | Palombi, 1924 | |
| Polyposthides | caraibica | Palombi, 1923 | |
| Neostylochus | caraibica | (Palombi, 1923) | |
| Stylochoplana | caraibica | Palombi, 1923 | |
| Polyposthides | caraibica | Palombi, 1923 | |
| Stylochus | castaneus | Palombi, 1939 | |
| Stylochus | castaneus | Palombi, 1939 | |
| Planocerodes | ceratommata | Palombi, 1936 | |
| Planocera | ceratommata | (Palombi, 1936) | |
| Planocerodes | ceratommata | Palombi, 1936 | |
| Pseudobiceros | cincereus | (Palombi, 1931) | |
| Pseudobiceros | cinereus | (Palombi, 1931) | |
| Pseudoceros | cinereus | Palombi, 1931 | |
| Pseudoceros | cinereus | Palombi, 1931 | |
| Prosthiostomum | delicatum | Palombi, 1939 | |
| Lurymare | delicatum | (Palombi, 1939) | |
| Lurymare | delicatum | (Palombi, 1939) | |
| Enchiridium | delicatum | (Palombi, 1939) | |
| Prosthiostomum | delicatum | Palombi, 1939 | |
| Monocelidinae | Digenobothrium | Palombi, 1926 | |
| Ditremageniidae | Ditremagenia | Palombi, 1928 | |
| Ditremagenioidea | Ditremageniidae | Palombi, 1928 | |
| Maricola | Ditremageniidae | Palombi, 1928 | |
| Euryleptinae | Euryleptides | Palombi, 1923 | |
| Euryleptididae | Euryleptides | Palombi, 1923 | |
| Leptoplana | genicotyla | (Palombi, 1939) | |
| Stylochoplana | genicotyla | Palombi, 1939 | |
| Leptoplana | genicotyla | (Palombi, 1939) | |
| Stylochoplana | genicotyle | Palombi, 1939 | |
| Digenobothrium | inerme | Palombi, 1926 | |
| Stylochus | inimicus | Palombi, 1931 | |
| Stylochus | inimicus | Palombi, 1931 | |
| Pulchriplana | insignis | Palombi, 1938 | |
| Pulchriplana | insignis | Palombi, 1938 | |
| Polyposthides | karimalensis | Palombi, 1924 | |
| Polyposthides | karimatensis | Palombi, 1923 | |
| Ditremagenia | macropharynx | Palombi, 1928 | |
| Polyposthiidae I | Metaposthia | Palombi, 1923 | |
| Polyposthiidae | Metaposthia | Palombi, 1923 | |
| Imogine | minimus | (Palombi, 1940) | |
| Stylochus | minimus | Palombi, 1940 | |
| Stylochus | minimus | Palombi, 1940 | |
| Hofstenia | minuta | Palombi, 1928 | |
| Metaposthia | norfolkensis | Palombi, 1923 | |
| Metaposthia | norfolkensis | Palombi, 1923 | |
| Stylochoplaninae | Notoplanides | Palombi, 1928 | |
| Sorocelis | oculimarginata | Palombi, 1931 | |
| Ijimia | oculimarginata | (Palombi, 1931) | |
| Polycelis | oculimarginata | (Palombi, 1931) | |
| Opisthogeniidae | Opisthogenia | Palombi, 1928 | |
| Opisthogeniidae | Opisthogenia | Palombi, 1928 | |
| Cotylea | Opisthogeniidae | Palombi, 1928 | |
| Opisthogenioidea | Opisthogeniidae | Palombi, 1928 | |
| Notoplanides | opisthopharynx | Palombi, 1928 | |
| Stylochoplana | opisthopharynx | (Palombi, 1928) | |
| Notoplanides | opisthopharynx | Palombi, 1928 | |
| Stylochoplana | parva | Palombi, 1939 | |
| Stylochoplana | parva | Palombi, 1939 | |
| Notoplana | parvula | Palombi, 1923 | |
| Notoplana | parvula | Palombi, 1923 | |
| Planoceridae | Planocerodes | Palombi, 1936 | |
| Planoceridae | Planocerodes | Palombi, 1936 | |
| Laidlawia | polygenia | Palombi, 1938 | |
| Laidlawia | polygenia | Palombi, 1938 | |
| Polyposthiidae I | Polyposthides | Palombi, 1923 | |
| Polyposthiidae | Polyposthides | Palombi, 1924 | |
| Ilyplanidae | Pulchriplana | Palombi, 1938 | |
| Leptoplaninae | Pulchriplana | Palombi, 1938 | |
| Stylochoplana | robusta | (Palombi, 1928) | |
| Notoplana | robusta | Palombi, 1928 | |
| Stylochoplana | robusta | (Palombi, 1928) | |
| Armatoplana | robusta | (Palombi, 1928) | |
| Notoplana | robusta | Palombi, 1928 | |
| Enchiridium | russoi | (Palombi, 1939) | |
| Lurymare | russoi | (Palombi, 1939) | |
| Prosthiostomum | russoi | Palombi, 1939 | |
| Lurymare | russoi | (Palombi, 1939) | |
| Prosthiostomum | russoi | Palombi, 1939 | |
| Cryptocelides | samoensis | Palombi, 1923 | |
| Cryptocelides | samoensis | Palombi, 1923 | |
| Stylochoplana | siamensis | Palombi, 1923 | |
| Koinostylochus | siamensis | (Palombi, 1923) | |
| Stylochoplana | siamensis | Palombi, 1923 | |
| Leptostylochus | sp. | Palombi, 1936 | |
| Notoplanides | species | Palombi, 1928 | |
| Palombiella | stephensoni | (Palombi, 1938) | |
| Synsiphonium | stephensoni | Palombi, 1938 | |
| Stylochoplana | suesensis | Palombi, 1939 | |
| Stylochoplana | suesensis | Palombi, 1939 | |
| Stylochus | tenax | Palombi, 1936 | |
| Stylochus | tenax | Palombi, 1936 | |
| Opisthogenia | tentaculata | Palombi, 1928 | |
| Opisthogenia | tentaculata | Palombi, 1928 | |
| Armatoplana | tenuis | (Palombi, 1936) | |
| Stylochoplana | tenuis | Palombi, 1936 | |
| Stylochoplana | tenuis (1) | Palombi, 1936 | |
| Planocera | uncinata | Palombi, 1939 | |
| Planocera | uncinata | Palombi, 1939 | |
| Armatoplana | vesiculata | (Palombi, 1940) | |
| Stylochoplana | vesiculata | Palombi, 1940 | |
| Stylochoplana | vesiculata | Palombi, 1940 | |
| Euprosthiostomum | viscosum | Palombi, 1936 | |
| Euprosthiostomum | viscosum | Palombi, 1936 | |
| Thysanozoon | vulgare | Palombi, 1939 | |
| Thysanozoon | vulgaris | Palombi, 1939 |
118 names, including those in new combination. (Max listing set to 900)