''Choanomphalus'' 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 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

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 ins ...

, the

ram Ram, ram, or RAM may refer to: Animals * A male sheep * Ram cichlid, a freshwater tropical fish People * Ram (given name) * Ram (surname) * Ram (director) (Ramsubramaniam), an Indian Tamil film director * RAM (musician) (born 1974), Dutch * Ra ...

's horn snails, or planorbids. All species in this genus have sinistral or left-coiling shells.

Species

Species within the genus ''Choanomphalus'' include: * '' Choanomphalus amauronius'' Bourguignat, 1860Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories"
Version 2.3.1.
/ref> ** ''Choanomphalus amauronius angulatus'' (B. Dybowski & Grochmalicki, 1925) ** ''Choanomphalus amauronius westerlundianus'' Lindholm, 1909 * '' Choanomphalus annuliformis'' Kozhov, 1936 * '' Choanomphalus anomphalus'' W. Dybowski, 1901IUCN (2013). IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 16 May 2014. * '' Choanomphalus aorus'' Bourguignat, 1860 * '' Choanomphalus baicalensis'' * '' Choanomphalus bathybius'' Beckman & Starobogatov, 1975 ** ''Choanomphalus bathybius meridianus'' Beckman & Starobogatov, 1975 * '' Choanomphalus cryptomphalus'' W. Dybowski, 1901 * '' Choanomphalus eurystomus'' Lindholm, 1909 * '' Choanomphalus gerstfeldtianus'' Lindholm, 1909 * '' Choanomphalus grachevi'' Sitnikova & Röpstorf, 1999 * '' Choanomphalus huzhirensis'' Beckman & Starobogatov, 1975 * '' Choanomphalus hyaliniiformis'' Moskvicheva & Dworiadkin, 1980 * '' Choanomphalus incertus'' Lindholm, 1909 ** ''Choanomphalus incertus mesospiralis'' B. Dybowski & Grochmalicki, 1925 * '' Choanomphalus korotnevi'' Lindholm, 1909 * '' Choanomphalus kozhovi'' Beckman & Starobogatov, 1975 * '' Choanomphalus lindholmi'' Beckman & Starobogatov, 1975 * '' Choanomphalus maacki'' Gerstfeldt, 1859 - type species ** ''Choanomphalus maacki andrussowianus'' (Lindholm, 1909) ** ''Choanomphalus maacki elatior'' Lindholm, 1909 * '' Choanomphalus microtrochus'' Lindholm, 1909 * '' Choanomphalus mongolicus''Sitnikova T. Ya. (1999). "Variability of the gastropod mollusk ''Choanomphalus mongolicus'' shell from Lake Hovsgol". ''

Russian Journal of Zoology Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...

'' 78(7): 413-4??
abstract
* '' Choanomphalus okhoticus'' Prozorova & Starobogatov, 1997 * '' Choanomphalus omphalotus'' W. Dybowski, 1901 * '' Choanomphalus parvus'' Kozhov, 1936 * '' Choanomphalus patulaeformis'' Lindholm, 1909 * '' Choanomphalus planorbiformis'' Beckman & Starobogatov, 1975 * '' Choanomphalus pygmaeus'' Lindholm, 1909 * '' Choanomphalus schrencki'' or '' Choanomphalus schrenkii'' W. Dybowski, 1875 * '' Choanomphalus valvatoides'' W. Dybowski, 1875 Synonyms: * ''Choanomphalus riparius'' (Westerlund, 1865) is a synonym of '' Gyraulus riparius'' * ''Choanomphalus rossmaessleri'' (Auerswald in A. Schmidt, 1851) is a synonym of ''

Gyraulus rossmaessleri ''Gyraulus rossmaessleri'' is a small species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Distribution The distribution of this species is Holarctic. It occurs in countries an ...

References

External links

{{Taxonbar, from=Q16975668 Planorbidae