Trissexodon

Trissexodon is a monotypic genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the subfamily Trissexodontinae of the family Trissexodontidae.

Species

 * Trissexodon is the type genus of the family Trissexodontidae, its only species being Trissexodon constrictus (Boubée, 1836 ).
 * Synonyms:
 * † Trissexodon plioauriculatus (Sacco, 1889) : synonym of † Protodrepanostoma plioauriculatum (Sacco, 1889)
 * Taxon inquirendum:
 * † Trissexodon subconstrictus (Souverbie, 1873)

Distribution
The distribution of the genus Trissexodon includes the western Pyrenees.