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Trissexodontidae

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Trissexodontidae httpsuploadwikimediaorgwikipediacommonsthu

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Oestophora, Helicodontidae, Cochlicellidae, Lauriidae, Suboestophora

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

Contents

This family has no subfamilies. The family Trissexodontidae was separated out from the families Hygromiidae and Helicodontidae, and some authors still classify these species within those families.

Distribution

The distribution of Trissexodontidae includes the Iberian peninsula, northwest Africa, Azores, Canary Islands, Madeira and Cape Verde.

Genera

Genera within the family Trissexodontidae include:

  • Caracollina Beck, 1837
  • Gasullia Ortiz de Zárate López, 1962
  • Gasulliella Gittenberger, 1980 - with only one species, Gasulliella simplicula (Morelet, 1845)
  • Gittenbergeria Schileyko, 1991
  • Mastigophallus Hesse, 1918 - with only one species, Mastigophallus rangianus (Michaud, 1831)
  • Oestophora Hesse, 1907
  • Oestophorella Pfeffere, 1929
  • Trissexodon Pilsbry, 1895 - type genus of the family Trissexodontidae
  • Spirorbula Lowe, 1852 - probable classification, from Madeira and Porto Sancto
  • Suboestophora Ortiz de Zárate López, 1962
  • Description

    Shells of species in the family Trissexodontidae are flat and regularly ribbed. The periostracum of the shell surface has no hairs.

    A description of the reproductive system was summarized by Prieto et al. (1993).

    In this family, the number of haploid chromosomes is known only for the genus Oestophora (n=30).

    References

    Trissexodontidae Wikipedia


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