Cuvier, 1817
Gastropods with partly or wholly detorted body; shelled or shell-less. Gills lacking; respiration carried out by the mantle cavity, which functions as a lung. Entirely hermaphroditic. Mostly in freshwater or terrestrial habitats, with a few marine species occuring in shallow coastal water.
Source: Hayward et al., 1990.
The following subtaxa of this subclass occur in the region:
Order Basommatophora
Superfamily Ellobioidea
Family Ellobiidae
Genus Auriculinella
Auriculinella erosa
Genus Ovatella
Ovatella denticulata
Ovatella myosotis
Family Otinidae
Genus Otina
Otina ovata