Hemisinidae is a

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

snail A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class G ...

s in the superfamily Cerithioidea. They occur in freshwater and brackish environments on all continents except Australia and Antarctica.

Genera

There are five extant genera: * '' Aylacostoma'' Spix, 1827 * '' Cubaedomus'' Thiele, 1928 * '' Hemisinus'' Swainson, 1840 * '' Longiverena'' Pilsbry & Olsson, 1935 * '' Pachymelania'' E. A. Smith, 1893 There are also four genera only known from fossils: * † ''Axonella'' Pacaud, Lhomme & Renaud, 2021 * † ''Gantmelania'' Kowalke, 2001 * † ''Pyrgulifera'' Meek, 1871 * † ''Stephaniphera'' S. Schneider, Kollmann & Pickford, 2020 Pachymelania aurita 01

References

{{taxonbar, from=Q58377100 , from2=Q33147678 Cerithioidea Gastropod families Taxa named by Paul Henri Fischer