Heterobranchia
superfamily Ellobioidea
Members of the superfamily Ellobioidea are operculate, air breathing snails that live in salt marshes, tidal flats, and other nearshore marine environments and thus have a tolerance for saline conditions and are best described as semi-terrestrial. However, a few species are completely terrestrial. Bouchet & Rocroi, 2005 [Classification and Nomenclature of Gastropod Families. Malacologia 47 (1-2): 1-397] recognize one family Ellobioidae and five subfamilies. Other authors recognize one of these Carychiinae, as a family, Carychiidae.
family Ellobioidae
subfamily Carychiinae [=Carychiidae]
Genera:
| Carychium | worldwide |
| Coilostele | Mexico (Tamaulipas), Pakistan |
| Zospeum |
all other subfamilies
Genera:
| Alexia | Bermuda, California |
| Allochroa | Hawaiin Ids., Mexico (Quintana Roo), Viet Nam, Philippines, South Pacific Ids., Australia, New Zealand |
| Apodosis | Bahamas |
| Auricula | Philippines |
| Auriculastra | Hawaiin Ids., Florida, Ouvea Id., S. Africa, China, Andaman & Nicobar Ids., Viet Nam, Phillippines, Guam, Indonesia, New Guinea, New Caledonia, Fiji |
| Auriculinella | Bermuda, Mexico (Yucatan), Florida, Cuba, Grand Cayman, Puerto Rico, Panama |
| Blauneria | |
| Carychium | worldwide |
| Cassidula | South Africa, Mauritius, Mozambique, India, China, SE Asia, Australia, New Zealand, Polynesia, Fiji |
| Coilostele | Mexico (Tamaulipas), Pakistan |
| Creedonia | Florida, Ecuador |
| Cylindrotis | Philippines |
| Detracia | Bermuda, Azores, Fiji, Mexico (Yucatan), Puerto Rico, Bahamas, Panama |
| Ellobium | |
| Laemodonta | |
| Leuconopsis | |
| Marinula | |
| Melampus | |
| Microtralia | |
| Myosotella | |
| Ophicardelus | |
| Ovatella | |
| Pedipes | |
| Phytia | |
| Pira | |
| Plecotrema | |
| Pseudomelampus | |
| Pythia | |
| Tralia |