- Source: Odontostomidae
Odontostomidae is a taxonomic family of medium-sized to large, air-breathing, tropical and sub-tropical land snails, terrestrial pulmonate gastropod molluscs in the superfamily Orthalicoidea.
Taxonomy
= 2005 taxonomy
=This taxon was placed as the tribe Odontostomini, in the subfamily Bulimulinae, within the family Orthalicidae, according to the taxonomy of the Gastropoda (Bouchet & Rocroi, 2005).
= 2010 taxonomy
=Breure et al. (2010) elevated Odontostomini to Odontostomidae.
Genera
Genera in the family Odontostomidae include:
Anostoma Fischer von Waldheim, 1807 - synonym: Ringicella Gray, 1847 cf.
Bahiensis Jousseaume, 1877
Biotocus Salgado & Leme, 1990
Bonnanius Jousseaume, 1900
Clessinia Doering, 1874
Cyclodontina Beck, 1837
Digerus Haas, 1937 cf.
Hyperaulax Pilsbry, 1897
Moricandia Pilsbry & Vanatta, 1898
Odontostomus Beck, 1837 - type genus of the tribe Odontostomini
Plagiodontes Doering, 1876
Spixia Pilsbry & Vanatta, 1898
Tomigerus Spix, 1827
Description
Species in tribe Odontostomini have the aperture obstructed by internal lamellae, folds or teeth (rarely absent by degeneration); the base is perforate
or has an umbilical suture; and the genitalia are extremely lengthened. Jaw either plaited or solid.
Odontostomini is clearly a natural group of genera, confined to South America east of the Andes, and with the exception of some species, south of the Amazon. That the whole series had its inception in a form in which the characteristic apertural teeth had already been developed, is demonstrated by
the fact that these lamella and folds are clearly homologous throughout the species of the several genera. It follows from this that the toothless forms, such as Moricandia, are secondarily so, by degeneration of the teeth of their ancestors. Many species show the various stages of tooth
degeneration.
References
This article incorporates public domain text from the reference