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Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Caenogastropoda
Superfamilia Incertae sedis: Cerithioidea

Familia: Hemisinidae
Genera (4 + 1†): Aylacostoma – Cubaedomus – Hemisinus – Pachymelania – †Pyrgulifera
Name

Hemisinidae Fischer & Crosse, 1891
Synonyms

Aylacostomatinae Parodiz, 1969
Hemisininae P. Fischer & Crosse, 1891
Pachymelaniidae Bandel & Kowalke, 1999

References
Links

Hemisinidae in the World Register of Marine Species

Hemisinidae is a family of snails in the superfamily Cerithioidea.[1][2] They occur in freshwater and brackish environments[2] on all continents except Australia and Antarctica.[3]
Genera

There are five extant genera:[2]

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:[2]

† Axonella Pacaud, Lhomme & Renaud, 2021
† Gantmelania Kowalke, 2001
† Pyrgulifera Meek, 1871
† Stephaniphera S. Schneider, Kollmann & Pickford, 2020

References

Neubauer, Thomas A. (2023). "The fossil record of freshwater Gastropoda – a global review". Biological Reviews. doi:10.1111/brv.13016.
Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2023). "Hemisinidae P. Fischer & Crosse, 1891". MolluscaBase. World Register of Marine Species. Retrieved 22 November 2023.
"Hemisinidae". Global Biodiversity Information Facility. Retrieved 22 November 2023.

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Biology Encyclopedia

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