''Craspedaria coronula'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

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 ...

in the genus

Geomitridae Geomitridae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea Helicoidea is a Taxonomy (biology), taxonomic Taxonomic rank, superfamily of air-b ...

. ''Craspedaria coronula'' is

endemic Endemism is the state of a species being found only 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 foun ...

to the Madeira Archipelago, and is currently only found on the

Desertas Islands The Desertas Islands (, , "Deserted Islands") are a small archipelago in the Atlantic Ocean, part of the larger Portuguese Madeira Archipelago. The archipelago is located off the coast of Morocco. Deserta Grande Island is located about southea ...

. It was originally described by English

malacologist Malacology, from Ancient Greek μαλακός (''malakós''), meaning "soft", and λόγος (''lógos''), meaning "study", is the branch of invertebrate zoology that deals with the study of the Mollusca (molluscs or mollusks), the second-largest ...

Richard Thomas Lowe Richard Thomas Lowe (1802–1874) was an English botanist, ichthyologist, malacologist, and clergyman. In 1825 he graduated from Christ's College, Cambridge, and in the same year he took holy orders. In 1832 he became a clergyman in the Madeira ...

in 1852, from a Quaternary fossil deposit found in the southern part of

Bugio Island Bugio Island () — is one of the three islands of the Portuguese Desertas Islands archipelago, a small chain of islands in the Madeira, Madeira Islands Archipelago of Macaronesia. It is located in the Atlantic Ocean off the western coast of Nor ...

. It has a conical white shell, in width and in length, with five whorls.

References

External links

Lowe, R. T. (1852). Brief diagnostic notices of new Maderan land shells. The Annals and Magazine of Natural History. (2) 9 (50): 112-120; (2) 9 (52): 275-279. London
Endemic fauna of Madeira Molluscs of Madeira Gastropods described in 1852 Geomitridae {{Geomitridae-stub