''Trissexodon'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of air-breathing

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as ...

s, terrestrial

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

s in the subfamily Trissexodontinae of the family

Trissexodontidae 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). This family has no subfamilies. The famil ...

. MolluscaBase eds. (2022). MolluscaBase. Trissexodon Pilsbry, 1895. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=996975 on 2022-10-16

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 The Pyrenees (; es, Pirineos ; french: Pyrénées ; ca, Pirineu ; eu, Pirinioak ; oc, Pirenèus ; an, Pirineus) is a mountain range straddling the border of France and Spain. It extends nearly from its union with the Cantabrian Mountains to C ...

."Genus summary for ''Trissexodon''"
AnimalBase, last modified 26 September 2008, accessed 12 January 2011.

References

* Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16th, 2017

External links

Pilsbry, H. A. (1893-1895). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 9: Helicidae, Vol. 7, Guide to the study of Helices. pp 1-225, pls 1-61. Philadelphia, published by the Conchological Section, Academy of Natural Sciences.
Trissexodontidae Taxonomy articles created by Polbot {{Trissexodontidae-stub