''Rhytida'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of medium-sized, air-breathing,

predatory Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill th ...

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 ...

s, terrestrial

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 includ ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

s in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Rhytididae. This is the type genus of the family.

Distribution

This genus is endemic to

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979

Species

Species and subspecies recognised in the genus ''Rhytida'' are:Checklist of New Zealand Mollusca
/ref> * ''

Rhytida australis ''Rhytida australis'' is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. Distribution This species is endemic to Stewart Island in New Zealand New Zealand ( mi, Aotearo ...

'' Hutton, 1883 Stewart Island/Rakiura * ''

Rhytida citrina ''Rhytida citrina'' is a species of medium-sized, air-breathing predatory land snail, a terrestrial pulmonate gastropod mollusc in the eponymous family Rhytididae Rhytididae is a taxonomic family of medium-sized predatory air-breathing land s ...

'' Hutton, 1883

South Island The South Island, also officially named , is the larger of the two major islands of New Zealand in surface area, the other being the smaller but more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasman ...

* ''

Rhytida greenwoodi ''Rhytida greenwoodi'' is a species of medium-sized, air-breathing predatory land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. Subspecies * ''Rhytida greenwoodi greenwoodi'' (Gray, 1950) North Island * '' Rhytida ...

'' ** ''Rhytida greenwoodi greenwoodi'' (Gray, 1950)

North Island The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest ...

** ''

Rhytida greenwoodi webbi ''Rhytida greenwoodi webbi'' is a subspecies of medium-sized, air-breathing, predatory land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae Rhytididae is a taxonomic family of medium-sized predatory air-breathing la ...

Powell Powell may refer to: People * Powell (surname) * Powell (given name) * Powell baronets, several baronetcies *Colonel Powell (disambiguation), several military officers *General Powell (disambiguation), several military leaders *Governor Powell (di ...

, 1949 South Island * ''

Rhytida meesoni ''Rhytida meesoni'' is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. Subspecies * ''Rhytida meesoni meesoni'' Suter, 1891 South Island * '' Rhytida meesoni perampla'' Powell, ...

'' ** ''Rhytida meesoni meesoni''

Suter Suter is a surname. Notable people with the name include: * Alexis P. Suter (born 1963), American blues, and soul blues singer and songwriter * Andrew Burn Suter (1830–1895), Bishop of the Diocese of Nelson, New Zealand * August Suter (1887& ...

, 1891 South Island ** ''

Rhytida meesoni perampla ''Rhytida meesoni perampla'' is a subspecies of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae Rhytididae is a taxonomic family of medium-sized predatory air-breathing land snails, carnivor ...

, 1946 South Island * ''

Rhytida oconnori ''Rhytida oconnori'' is a species of medium-sized, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. It is found only at the top of New Zealand's South Island in the Abel Tasman National Park and at Par ...

, 1946 South Island * ''

Rhytida otagoensis ''Rhytida otagoensis'' is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae Rhytididae is a taxonomic family of medium-sized predatory air-breathing land snails, carnivorous terre ...

, 1930 South Island * ''

Rhytida patula ''Rhytida patula'' is a species of medium-sized, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. Distribution This species occurs in New Zealand New Zealand ( mi, Aotearoa ) is an island ...

'' Hutton, 1883 South Island * '' Rhytida stephenensis''

, 1930 Stephens Island, Cook Strait Note that the species/subspecies status of some of the above taxa is unclear and differs between sources.

Distribution

Species

References

Further reading