Leiostyla abbreviata
Encyclopedia
Leiostyla abbreviata is an extinct species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of small air-breathing land snail
Land snail
A land snail is any of the many species of snail that live on land, as opposed to those that live in salt water and fresh water. Land snails are terrestrial gastropod mollusks that have shells, It is not always an easy matter to say which species are terrestrial, because some are more or less...

, a terrestrial
Terrestrial animal
Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonate gastropod mollusk in the family Lauriidae
Lauriidae
Lauriidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks.- Taxonomy :The Lauriidae family is classified within the informal group Orthurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata .The family Lauriidae has no...

. It is sometimes referred as the Madeiran land snail
Madeiran land snail
Madeiran land snail is a common name which has been given to several different species of terrestrial gastropods, air-breathing land snails:* Geomitra moniziana* Leiostyla abbreviata* Leiostyla cassida* Leiostyla corneocostata...

.

It is mentioned in annexes II and IV of Habitats Directive.

Leiostyla abbreviata was listed as Critically endangered in the 1996 IUCN Red List
IUCN Red List
The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...

, but it is considered to be extinct.

Distribution

This species was endemic to Madeira, Portugal.
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