''Perdicella'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

tropical The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

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 ...

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 ...

s in the family

Achatinellidae Achatinellidae is a family of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea. Taxonomy It was previously the only family in the superfamily Achatinelloidea (according to the tax ...

. They are

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 ...

Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...

and the majority of the species are

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

Species

Species within the genus ''Perdicella'' include: * ''

Perdicella carinella ''Perdicella carinella'' is a species of tropical, tree-living, air-breathing, land snail, an arboreal pulmonate gastropod mollusc in the family Achatinellidae. This species is endemic to Hawaii in the United States The United States o ...

'' *† ''

Perdicella fulgurans ''Perdicella fulgurans'' is an extinct species of tropical tree-living, air-breathing, land snail, an arboreal pulmonate gastropod mollusc in the family Achatinellidae. This species was endemic to Hawaii in the United States The Unite ...

'' * ''

Perdicella helena ''Perdicella helena'' is a species of tropical tree-living, pulmonate, land snails in the family Achatinellidae. This species is endemic to Hawaii in the United States. Distribution ''Perdicella helena'' can be found on Molokaʻi and Maui ...

'' * ''

Perdicella kuhnsi ''Perdicella kuhnsi'' is a species of tropical, tree-living, air-breathing, land snail, an arboreal pulmonate gastropod mollusc in the family Achatinellidae. This species is endemic to Hawaii in the United States The United States of A ...

'' *† ''

Perdicella maniensis †''Perdicella maniensis'' was a species of tropical air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Achatinellidae. This species was endemic to Hawaii in the United States The United States of Americ ...

'' * ''

Perdicella ornata ''Perdicella ornata'' is a species of tropical, tree-living, air-breathing, land snails in the family Achatinellidae. This species is endemic to Hawaii in the United States. Description ''Perdicella ornata'' has a shiny, acutely pyramidal sh ...

'' *† ''

Perdicella zebra †''Perdicella zebra'' was a species of tropical tree-living, air-breathing, land snail, an arboreal pulmonate gastropod mollusc in the family Achatinellidae. This species was endemic to Hawaii in the United States The United States ...

'' *† ''

Perdicella zebrina †''Perdicella zebrina'' was a species of tropical, tree-living, air-breathing, land snail, an arboreal pulmonate gastropod mollusc in the family Achatinellidae. This species was endemic to Hawaii in the United States The United Stat ...

'' †=extinct

References

Nomenclator Zoologicus info
Molluscs of Hawaii Endemic fauna of Hawaii Gastropod genera Taxonomy articles created by Polbot {{Achatinellidae-stub