Hypogastropoda
Littorinimorpha
Superfamily Rissoidea
Terrestrial Rissoidea
The superfamily Rissoidea contains mostly marine snails in 23 families. They are operculate and posess gills. Terrestrial or semi-terrestrial species are found in three families: Assimineidae, Pomatiopsidae. and Truncatellidae. Distributions were taken from Compendium of Landshells by R. Tucker Abbott, the Discover Life website, and the Malacos.chez website.
Family Assimineidae
Genera:
| Acmella | Sumatra |
| Afroassiminea | |
| Allepithema | |
| Anaglyphula | |
| Assiminea | Madagascar, South Africa, Comores, Phillipines, New Caledonia, Japon, Russia, Malaysia, Society Ids. |
| Balambania | Philippines |
| Cyclomorpha | Tuamotu Ids. |
| Cyclotropis | |
| Dominamaria | |
| Electrina | |
| Fijianella | |
| Garrettia | |
| Omphalotropis | Saipan Id., Marianas |
| Paludinella | |
| Pseudocyclotus | Manus Id., Admiralty Ids. |
| Pseudogibbula | |
| Quadrasiella | |
| Rapanella | |
| Septariellina | |
| Suterilla | |
| Syncera |
Family Pomatiopsidae [=Delavayidae].
Only one genus contains semi-terrestrial species.
| Pomatiopsis |
Family Truncatellidae
Genera:
| Blandiella | Trinidad |
| Geomelania | Honduras (Utila Isl. & Roatan Isl.), Dominican Republic, Haiti, Jamaica, Grand Cayman, Cuba, |
| Rhiopoma | Saint Lucia |
| Taheitia | New Guinea, Philippines, Guam, Palau, Somoa, Vanuatu |
| Truncatella | Panama, Caribbean, Bermuda, Seychelles, Malaysia, New Caledonia, Philippines, South Africa, Europe, Mexico (Baja), California, Micronesia, India, Indonesia, Guam, Hawaiian Ids. |