Geomitridae

Geomitridae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.

Anatomy

The family is characterized by the presence of a free right ommatophoral retractor and a double stimulatory apparatus. A free right ommatophoral retractor has been linked to adaptation to xeric habitats.

Taxonomy

The family Geomitridae is subdivided in the following subfamilies. Genera with the family Geomitridae include:
Family Geomitridae

Not belonging to a subfamily:
* Keraea Gude, 1911
* Peridotitea Torres Alba, Holyoak, D. T., Holyoak, G. A., Vázquez Toro & Ripoll, 2018
Subfamily Geomitrinae
* tribe Cochlicellini Schileyko, 1972
** Cochlicella Férussac, 1821
** Monilearia Mousson, 1872
** Obelus W. Hartmann, 1842
** Ripkeniella Hutterer & E. Gittenberger, 1998
* tribe Geomitrini C. Boettger, 1909 - synonym: Ochthephilinae Zilch, 1960
** Actinella R. T. Lowe, 1852
** Callina R. T. Lowe, 1855
** Caseolus R. T. Lowe, 1852
** Discula R. T. Lowe, 1852
** Disculella Pilsbry, 1895
** Domunculifex Brozzo, De Mattia, Harl & Neiber, 2020
** Geomitra Swainson, 1840
** Helicomela R. T. Lowe, 1855
** Heterostoma W. Hartmann, 1843: synonym of Steenbergia Mandahl-Barth, 1950
** Hystricella R. T. Lowe, 1855
** Lemniscia R. T. Lowe, 1855
** Moreletina de Frias Martins, 2002
** Plebecula R. T. Lowe, 1852
** Pseudocampylaea L. Pfeiffer, 1877
** Serratorotula Groh & Hemmen, 1986
** Spirorbula R. T. Lowe, 1852
** Steenbergia Mandahl-Barth, 1950
** Testudodiscula Brozzo, De Mattia, Harl & Neiber, 2020
** Wollastonaria De Mattia, Neiber & Groh, 2018
* tribe Ponentinini Razkin et al., 2015
** Ponentina P. Hesse, 1921
subfamily Helicellinae
* tribe Cernuellini Schileyko, 1991
** Alteniella Clerx & Gittenberger, 1977
** Cernuella Schlüter, 1838
** Microxeromagna Ortiz de Zárate López, 1950
** Xeroplana Monterosato, 1892
** Xerosecta Monterosato, 1892
* tribe Helicellini Ihering, 1909 - synonym: Jacostidae Pilsbry, 1948
**Backeljaia Chueca et al., 2018
**Candidula Kobelt, 1871
** Helicella Férussac, 1821
** Orexana Chueca et al., 2018
** Xerogyra Monterosato, 1892
** Xeroleuca Kobelt, 1877
** Xeroplexa Monterosato, 1892
** Xerotricha Monterosato, 1892
** Zarateana Chueca et al., 2018
* tribe Helicopsini H. Nordsieck, 1987
** Helicopsis Fitzinger, 1833
** Pseudoxerophila Westerlund, 1879
** Xerolenta Monterosato, 1892
** Xeromunda Monterosato, 1892
** Xeropicta Monterosato, 1892
* tribe Plentuisini Razkin et al., 2015
** Plentuisa Puente & Prieto, 1992
* tribe Trochoideini H. Nordsieck, 1987
** Trochoidea T. Brown, 1827
** Xerocrassa Monterosato, 1892