''Anisus'' 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 small air-breathing

freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...

s, aquatic

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 ...

mollusk 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 e ...

s in the subfamily Planorbinae of 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 ...

Planorbidae Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs. Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin instea ...

, the ramshorn snails and their allies.Rosenberg, G.; Bouchet, P. (2014). Anisus. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=716342 on 2014-11-23

Species

The genus contains the following species: ;Subgenus ''Anisus'' * '' Anisus calculiformis'' (Sandberger, 1874) * † '' Anisus komarovae'' Prysjazhnjuk, 1974 * † '' Anisus krambergeri'' (Halaváts, 1903) * † ''

Anisus laskarevi ''Anisus'' is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.Rosenberg, G.; Bouchet, P. (2014). Anisus. Accessed ...

'' Milošević, 1976 * ''

Anisus leucostoma ''Anisus leucostoma'' is a European species of small air-breathing freshwater snail, an aquatic pulmonate gastropod in the family Planorbidae, the ram's horn snails and their allies. Taxonomy Glöer (2002) Glöer P. (2002). ''Die Süßwasserga ...

'' (Millet, 1813) * † '' Anisus septemgyratiformis'' (Gottschick, 1911) * ''

Anisus septemgyratus ''Anisus septemgyratus'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Taxonomy Glöer (2002) Glöer P. (2002). ''Die Süßwassergastropoden Nord- und ...

'' (Rossmässler, 1835) * ''

Anisus spirorbis ''Anisus spirorbis'' is a species of small freshwater air-breathing snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. MolluscaBase eds. (2021). MolluscaBase. Anisus spirorbis (Linnaeus, 1758). Access ...

'' (Linnaeus, 1758) - the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

of the genusGlöer, P. 2002 ''Die Süßwassergastropoden Nord- und Mitteleuropas''. Die Tierwelt Deutschlands, ConchBooks, Hackenheim, 326 pp., , page 254-263. * '' Anisus strauchianus'' (Clessin, 1884) ;Subgenus ''Anisus (Costorbis)'' Lindholm, 1926 * † '' Anisus densecostatus'' Schütt, 1994 ;Subgenus '' Disculifer'' C. Boettger 1944 * † '' Anisus omalus'' (Bourguignat, 1881) * ''

Anisus vorticulus ''Anisus vorticulus'' (lesser ramshorn snail or little whirlpool ramshorn snail) is a species of minute, air-breathing, freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ramshorn snails. Description The lesser ramsho ...

'' ;Subgenus ? * † '' Anisus angulatus'' (Clessin, 1877) * † ''

Anisus balizacensis ''Anisus'' is a genus of small air-breathing freshwater snails, aquatic animal, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family (biology), family Planorbidae, the ramshorn snails and their allies.Rosenberg, G.; Bou ...

'' (Peyrot, 1932) * † '' Anisus brunnensis'' (Sauerzopf, 1953) * † '' Anisus confusus'' Soós, 1934 * † '' Anisus depressissimus'' (Sacco, 1886) * † ''

Anisus dupuyianus ''Anisus'' is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.Rosenberg, G.; Bouchet, P. (2014). Anisus. Accessed ...

'' (Noulet, 1854) * † ''

Anisus falsani ''Anisus'' is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.Rosenberg, G.; Bouchet, P. (2014). Anisus. Accessed ...

'' (Locard, 1883) * † ''

Anisus guerichi ''Anisus'' is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.Rosenberg, G.; Bouchet, P. (2014). Anisus. Accessed ...

'' (Andreae, 1902) * † '' Anisus hilgendorfi (''Fraas, 1868) * ''

Anisus issykulensis ''Anisus'' is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Planorbinae of the family Planorbidae, the ramshorn snails and their allies.Rosenberg, G.; Bouchet, P. (2014). Anisus. Acces ...

'' (Clessin, 1907) * † '' Anisus mariae'' (Michaud, 1862) * † '' Anisus matheroni'' (Fischer & Tournouër, 1873) * † '' Anisus metochiensis'' Milošević, 1976 * '' Anisus natalensis'' (Krauss)Oberholzer G. & Van Eeden J. A. (1967). "The freshwater molluscs of the Kruger National Park". ''

Koedoe - African Protected Area Conservation and Science ''Koedoe'', subtitled ''African Protected Area Conservation and Science'', is a peer-reviewed open access scientific journal covering biology, ecology, and biodiversity conservation in Africa. It was established in 1958. Koedoe is Afrikaans for Ku ...

'' 10(1): 1-42.
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. Fig. 21. * † '' Anisus rousianus'' (Noulet, 1854) * '' Anisus vortex'' (Linnaeus, 1758) ;Subspecies and species brought into synonymy: * Subgenus ''Anisus (Gyraulus)'' Agassiz in Charpentier, 1837: synonym of ''

Gyraulus ''Gyraulus'' is a genus of small, mostly air-breathing, freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails. The genus ''Gyraulus'' is known from the Early Cretaceous to the present. Fossi ...

'' Charpentier, 1837 * ''Anisus (Gyraulus) terekholicus'' Prozorova & Starobogato, 1997: synonym of '' Gyraulus terekholicus'' (Prozorova & Starobogatov, 1997) *Subgenus † ''Anisus (Odontogyrorbis)'' Lörenthey, 1906: synonym of ''Anisus (Anisus)'' Studer, 1820 * Subgenus ''Anisus (Spiralina)'' Martens, 1899: synonym of ''Anisus'' Studer, 1820 * † ''Anisus angustigyratus'' (Sauerzopf, 1953): synonym of † ''Anisus (Anisus) krambergeri'' (Halaváts, 1903) * † ''Anisus dupuyanus'' (Noulet, 1854): synonym of † ''

'' (Noulet, 1854) * ''Anisus septemgyratus'' auct. (not Rossmässler): synonym of '' Anisus calculiformis'' (Sandberger, 1874) * ''Anisus tokyoensis'' Mori, 1938: synonym of '' Gyraulus tokyoensis'' (Mori, 1938)

References

External links

* Planorbidae {{Planorbidae-stub