''Patera clenchi'' (

syn. The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnae ...

''Mesodon clenchi'') is a species of

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 ...

in the family

Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. MolluscaBase eds. (2021). MolluscaBase. Polygyridae Pilsbry, 1895. Accessed through: World Register of Marine Species a ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Arkansas Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage ...

in the United States.''Patera clenchi''.
NatureServe. 2013. Its common names include Calico Rock oval,''Patera clenchi''.
Integrated Taxonomic Information System (ITIS). Clench's middle-toothed land snail, and Mission Creek Oregonian. The snail occurs in leaf litter in rocky cliff and rockslide habitat. It is threatened by habitat disturbance. The species was named for the American malacologist William J. Clench.

References

Polygyridae Endemic fauna of Arkansas Molluscs of the United States Gastropods described in 1932 Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{Polygyridae-stub