Calcareous terrains of South Europe and North Africa.
Description and Anatomy
Mantle caves serve as pulmones. Operculum corneous and multispiral. Penis is oriented above the right tentacle. Sexual dimorphism is often recognisable in external morphology.
Ecology
All species are confined to limestone habitats, feeding on dead plants and microflora. Females lays large eggs, hatching after three to six weeks.
Species
The genus Cochlostoma contains at least 140 species and subspecies, including:
Diversicolor A. J. Wagner, 1905 (a junior synonym)
Hartmannia Newton, 1891
Holcopoma Kobelt & Möllendorff, 1899
Patuliana Caziot, 1908
Personatus Westerlund, 1883
Pleuropoma A. J. Wagner, 1897
Pleuropomatia Tomlin, 1929
Pomatias (Atlantica) A. J. Wagner, 1897 (invalid: junior homonym of Atlantica Ancey, 1887)
Pomatias (Auritus) Westerlund, 1883
Pomatias (Cinerascens) A. J. Wagner, 1897
Pomatias (Cisalpina) A. J. Wagner, 1897
Pomatias (Difficilis) A. J. Wagner, 1897 (invalid:junior objective synonym of Hartmannia)
Pomatias (Eupomatias) A. J. Wagner, 1897
Pomatias (Maculatus) Westerlund, 1883
Pomatias (Nana) A. J. Wagner, 1897 (invalid: junior homonym of Nana Schumacher, 1817)
Pomatias (Neglecta) A. J. Wagner, 1897
Pomatias (Personatus) Westerlund, 1883
Pomatias (Philippiana) A. J. Wagner, 1897
Pomatias (Pleuropoma) A. J. Wagner, 1897 (invalid: junior homonym of Pleuropoma Möllendorff, 1893; * * Holcopoma and Pleuropomatia are replacement names)