Sphincterochilidae

Sphincterochilidae is a taxonomic family of medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

In the fossil record, Sphincterochilidae are known from the upper Eocene to the Holocene.

Distribution
The distribution of Sphincterochilidae includes the western-Palearctic zone.

Taxonomy
The following two subfamilies have been recognized in the taxonomy of Bouchet & Rocroi (2005):
 * subfamily Sphincterochilinae Zilch, 1960 (1910) - synonyms: Calcarinidae Pallary, 1909 (inv.); Albeidae Pallary, 1910. Sphincterochilidae is a conserved name to take the priority of Leucochroidae Westerlund, 1886.
 * subfamily † Pseudoleptaxinae H. Nordsieck, 1986

Genera
Genera within the family Sphincterochilidae include:

Sphincterochilinae
 * † Asensidea Calzada, 2003
 * Sphincterochila Ancey, 1887 - type genus of the family Sphincterochilidae

† Pseudoleptaxinae
 * † Dentellocaracolus Oppenheim, 1890
 * † Fridolinia Pilsbry, 1895 †
 * † Pseudoleptaxis Pilsbry, 1895 - type genus o the subfamily Pseudoleptaxinae
 * † Wenzia Pfeffer, 1930

Ecology
Sphincterochilidae land snails are xerothermophilous, i.e. they are well adapted to hot, arid places.