Trochomorphidae is a

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

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 molluscs, terrestrial gastropod mollusks that have gastropod shell, shel ...

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 inclu ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the superfamily

Gastrodontoidea Gastrodontoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the limacoid clade. Taxonomy According to the taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), families in this superfam ...

(according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Since 2017, its classification has been revised and it now belongs to the superfamily TrochomorphoideaMolluscaBase eds. (2021). MolluscaBase. Trochomorphidae Möllendorff, 1890. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=816186 on 2021-02-22 This family has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

Distribution

The distribution of Trochomorphidae includes eastern-

Palearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. Th ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

, south-eastern Asia,

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

and

Polynesia Polynesia ( , ) is a subregion of Oceania, made up of more than 1,000 islands scattered over the central and southern Pacific Ocean. The indigenous people who inhabit the islands of Polynesia are called Polynesians. They have many things in ...

Anatomy

In this family, the number of

haploid Ploidy () is the number of complete sets of chromosomes in a cell (biology), cell, and hence the number of possible alleles for Autosome, autosomal and Pseudoautosomal region, pseudoautosomal genes. Here ''sets of chromosomes'' refers to the num ...

chromosome A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome-forming packaging proteins; in eukaryotic cells, the most import ...

s lies between 26 and 30 (according to the values in this table).Barker G. M.: Gastropods on Land: ''Phylogeny, Diversity and Adaptive Morphology''. in Barker G. M. (ed.):
The biology of terrestrial molluscs
'. CABI Publishing, Oxon, UK, 2001, . 1-146, cited pages: 139 and 142.

Genera

Genera within the family Trochomorphidae include: * '' Benthemia'' Forcart, 1964 * '' Brazieria'' Ancey, 1887 * '' Calostropha'' Ancey, 1887 * '' Coxia'' Ancey, 1887 * '' Dendrotrochus'' Pilsbry, 1894 * '' Entomostoma'' H. B. Baker, 1941 * '' Eurybasis'' Gude, 1913 * '' Foxidonta'' Clench, 1950 * '' Geodiscus'' Iredale, 1941 * '' Geotrochus'' van Hasselt, 1823 * '' Hogolua'' Baker, 1941 * '' Kondoa'' Baker, 1941 * '' Liravidena'' Solem, 1959 * '' Orpiella'' L. Pfeiffer & J. E. Gray, 1855 * '' Peleliua'' H. B. Baker, 1941 * '' Probrazieria'' H. B. Baker, 1941 * '' Tegumen'' Gude, 1913 * '' Theskelomensor'' Iredale, 1933 * '' Trochomorpha'' Albers, 1850 - type genus of the family Trochomorphidae * '' Trochositala'' Schileyko, 2002 * '' Videna'' A. Adams 1858 * '' Videnoida'' Minato, 1988 * '' Vitrinoconus'' C. Semper, 1873

Cladogram

The following

cladogram A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tree, evolutionary tree because it does not s ...

shows the phylogenic relationships of this family to other families within the

limacoid clade The Limacoidei is a taxonomic infraorder of air-breathing land snails, semislugs and slugs, terrestrial pulmonate gastropod molluscs in the suborder Helicina. Distribution The original ancestral area of limacoid families is thought to be ...

:Hausdorf B. (March 2000). "Biogeography of the Limacoidea sensu lato (Gastropoda: Stylommatophora): Vicariance Events and Long-Distance Dispersal". '' Journal of Biogeography'' 27(2): 379-390.
JSTOR

Distribution

Anatomy

Genera

Cladogram

References

Further reading