''Ravana politissima'' 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

slug Slug, or land slug, is a common name for any apparently shell-less Terrestrial mollusc, terrestrial gastropod mollusc. The word ''slug'' is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced ...

, a

terrestrial Terrestrial refers to things related to land or the planet Earth, as opposed to extraterrestrial. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on o ...

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 ...

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

in the family

Ariophantidae Ariophantidae is a Taxonomy (biology), taxonomic family (biology), family of air-breathing land snails and semi-slugs, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea (according to the Taxonomy of ...

. It is a monotypic genus, which is endemic to island of

Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...

. They are considered as endangered due to

habitat destruction Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease ...

. The generic name is due to early Sri Lanka king

Ravan Ravan, Raavan or Ravanan, may refer to: Religion * Ravana, Ravan or Ravanan, the prime antagonist in the ancient Hindu epic ''Ramayana'' Film and TV * ''Raavan'' (1984 film), an Indian Hindi-language film * ''Ravanan'' (1994 film), a 1994 Indi ...

References

{{Taxonbar, from=Q27942661 Ariophantidae Gastropods described in 1854 Gastropods of Sri Lanka