''Gyraulus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of small, mostly 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 gastropod

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 es ...

s in the family Planorbidae, 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 ...

's horn snails. The genus ''Gyraulus'' is known from the Early

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

to the present. Fossils attributed to ''Gyraulus'' sp. have been found in the lakebottom sediments of the

Yixian Formation The Yixian Formation (; formerly transcribed as Yihsien Formation) is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans the late Barremian and early Aptian stages of the Early Cretaceous. It is known for its ...

in China, dating to 125 million years ago.Pan, H. and Zhu, X. (2007). "Early Cretaceous non-marine gastropods from the Xiazhuang Formation in North China." ''Cretaceous Research'', 28(2): 215-224. The minute species ''

Gyraulus crista ''Gyraulus crista'', commonly called the Nautilus ramshorn, is a minute species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Subspecies Subspecies include: * ''Gyraulus crista ...

'', although technically a pulmonate gastropod, does not use air for respiration, but instead has a mantle cavity which has much water.

Distribution

The distribution of this genus is

Holarctic The Holarctic realm is a biogeographic realm that comprises the majority of habitats found throughout the continents in the Northern Hemisphere. It corresponds to the floristic Boreal Kingdom. It includes both the Nearctic zoogeographical regi ...

Habitat

These snail snails live on water plants in freshwater.

Shell description

Shell of the species within this genus are small, and are mostly almost planispiral in their coiling.

Species

Species within the genus ''Gyraulus'' include: subgenus ''

Armiger In heraldry, an armiger is a person entitled to use a heraldic achievement (e.g., bear arms, an "armour-bearer") either by hereditary right, grant, matriculation, or assumption of arms. Such a person is said to be armigerous. A family or a cl ...

'' W. Hartmann, 1843 * ''

'' (Linnaeus, 1758) - Nautilus ramshorn * † ''

Gyraulus cristaeformis ''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. Fossil ...

'' (Gozhik & Prysjazhnjuk, 1978) * † ''

Gyraulus decorus ''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. Foss ...

'' (Roshka, 1973) * † ''

Gyraulus geniculatus ''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. Fossil ...

'' (Sandberger, 1875) * † ''

Gyraulus gracilis ''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. Fossil ...

'' (Gozhik & Prysjazhnjuk, 1978) * † ''

Gyraulus lenapalus ''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. Fossil ...

'' (Bourguignat, 1881) * † ''

Gyraulus lluecai ''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. Fossil ...

'' (Royo Gómez, 1922) * † ''

Gyraulus nautiliformis ''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. Fossil ...

'' (Gozhik & Prysjazhnjuk, 1978) * † ''

Gyraulus subptychophorus ''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. Fossil ...

'' (Halaváts, 1903) subgenus '' Carinogyraulus'' Polinski, 1929: represented as ''Gyraulus'' subgenus ''Gyraulus'' Charpentier, 1837 * † ''

Gyraulus aegaeus ''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. Fossil ...

'' Willmann, 1981 * † ''

Gyraulus bachmayeri ''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. Fossil ...

'' Schlickum & Strauch, 1979 * † ''

Gyraulus bigueti ''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. Fossil ...

'' (Fontannes, 1881) * † ''

Gyraulus brlici ''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. Fossil ...

'' Brusina, 1897 * † ''

Gyraulus brusinai ''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. Fossil ...

'' (Lörenthey, 1894) * ''

Gyraulus chinensis ''Gyraulus chinensis'' is a species of small freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Distribution This species is native to Asia. The non-indigenous distribution for this ...

'' (Dunker, 1848)"''Gyraulus''"

Fauna Europaea Fauna Europaea is a database of the scientific names and distribution of all living multicellular European land and fresh-water animals. It serves as a standard taxonomic source for animal taxonomy within the Pan-European Species directories Inf ...

, last update 27 January 2011, accessed 1 May 2011. * † ''

Gyraulus connivens ''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. Foss ...

'' (Eichwald, 1830) * † ''

Gyraulus constans ''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. Fossil ...

'' (Brusina, 1884) * † ''

Gyraulus dalmaticus ''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. Foss ...

'' (Brusina, 1884) * † ''

Gyraulus deflexus ''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. Fossil ...

'' (Sandberger, 1859) * † ''

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

'' (Brusina, 1902) * † ''

Gyraulus doseni ''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. Fossils ...

'' (Brusina, 1902) * † ''

Gyraulus formosus ''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. Fossils ...

'' (Brusina, 1902) * † ''

Gyraulus fragilis ''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. Foss ...

'' (Pavlović, 1903) * † ''

Gyraulus goussardianus ''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. Foss ...

'' (Noulet, 1854) * † ''

Gyraulus hians ''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. Fossils ...

'' (Rolle, 1860) * † ''

Gyraulus hoernesi ''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. Foss ...

'' (Rolle, 1860) * † ''

Gyraulus inornatus ''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. Fossil ...

'' (Brusina, 1902) * ''

Gyraulus ioanis ''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. Foss ...

'' Gloer & Pesic, 2007 * ''

Gyraulus janinensis ''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. Fossils ...

'' (Mousson, 1859) * † ''

Gyraulus jukici ''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. Foss ...

'' (Brusina, 1902) * † ''

Gyraulus jurkovici ''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. Fossils ...

'' (Brusina, 1902) * † ''

Gyraulus katurici ''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. Foss ...

'' (Brusina, 1897) * † ''

Gyraulus kosovensis ''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. Foss ...

'' (Pavlović, 1903) * † ''

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

'' (Brusina, 1892) * † ''

Gyraulus lendli ''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. Fossils ...

'' (Brusina, 1902) * † ''

Gyraulus lineolatus ''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. Fossils ...

'' (Brusina, 1878) * † ''

Gyraulus lorentheyi ''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. Foss ...

'' (Brusina, 1902) * ''

Gyraulus meierbrooki ''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. Foss ...

'' Gloer & Pesic, 2007 * † ''

Gyraulus multicingulatus ''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. Fossils ...

'' (Wenz, 1919) * † ''

Gyraulus nematophorus ''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. Foss ...

'' (Brusina, 1902) * † ''

Gyraulus novaki ''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. Fossils ...

'' (Brusina, 1897) * † ''

Gyraulus nusici ''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. Fossil ...

'' (Pavlović, 1903) * † ''

Gyraulus oncostomus ''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. Foss ...

'' (Brusina, 1902) * † ''

Gyraulus orahovacensis ''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. Foss ...

'' (Pavlović, 1903) * † ''

Gyraulus pachychilus ''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. Fossils ...

'' (Brusina, 1902) * † ''

Gyraulus parvulus ''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. Fossils ...

'' (Lörenthey, 1906) * † ''

Gyraulus pavlovici ''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. Fossils ...

'' (Brusina, 1893) * † ''

Gyraulus phacecercus ''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. Fossil ...

'' (Brusina, 1902) * ''

Gyraulus piscinarum ''Gyraulus piscinarum'' is a species of gastropods belonging to the family Planorbidae. The species is found in Southeastern Europe (Bulgaria, Turkey) and Western Asia Western Asia, West Asia, or Southwest Asia, is the westernmost subregion ...

'' (Bourguignat, 1852) * † ''

Gyraulus ponticus ''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. Foss ...

'' (Lörenthey, 1893) * † ''

Gyraulus porcellaneus ''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. Foss ...

'' (Lörenthey, 1902) * † ''

Gyraulus praeponticus ''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. Fossils ...

'' (Gorjanović-Kramberger, 1890) * † ''

Gyraulus ptychostomus ''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. Foss ...

'' (Brusina, 1902) * † ''

Gyraulus rotella ''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. Foss ...

'' (Rousseau, 1842) * ''

Gyraulus shasi ''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. Fossils ...

'' Gloer & Pesic, 2007 * † ''

Gyraulus sibinjensis ''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. Foss ...

'' (Brusina, 1897) * † ''

Gyraulus slavonicus ''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. Fossils ...

'' (Brusina, 1897) * † ''

Gyraulus spratti ''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. Foss ...

'' (Forbes, 1845) * † ''

Gyraulus stoppanii ''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. Fossil ...

'' (Sacco, 1886) * ''

Gyraulus stroemi ''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. Foss ...

'' (Westerlund, 1881) * † ''

Gyraulus subverticillus ''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. Fossil ...

'' (Oppenheim, 1919) * † ''

Gyraulus sulfureus ''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. Foss ...

'' (Royo Gómez, 1922) * † ''

Gyraulus tenuistriatus ''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. Foss ...

'' (Gorjanović-Kramberger, 1899) * † ''

Gyraulus tetracarinatus ''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. Foss ...

'' (Pavlović, 1903) * † ''

Gyraulus virgatus ''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. Fossil ...

'' (Ludwig, 1865) * † ''

Gyraulus zoebeleini ''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. Fossils ...

'' Schlickum & Strauch, 1974 subgenus '' Lamorbis'' Starobogatov, 1967: represented as ''Gyraulis'' subgenus '' Nautilinus'' Mousson, 1872 * ''

Gyraulus clymene ''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. Fossil ...

'' (Shuttleworth, 1852) subgenus '' Torquis'' Dall, 1905 * ''

Gyraulus laevis ''Gyraulus laevis'' is a small species of freshwater snail, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails. Distribution Found mainly in the northern parts of Europe East to Siberia and north-east Asi ...

'' (Alder, 1838)"''Torquis''"

, last update 27 January 2011, accessed 1 May 2011. subgenus ? * ''

Gyraulus acronicus ''Gyraulus acronicus'' is a small species of freshwater snail, an aquatic pulmonate gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastr ...

'' (Férussac, 1807) * † ''

Gyraulus albertanus ''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. Fossils ...

'' (Clessin, 1877) * ''

Gyraulus albidus ''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. Fossil ...

'' Radoman, 1953 * ''

Gyraulus albus ''Gyraulus albus'', common name white ramshorn, is a small species of freshwater snail, an Aquatic animal, aquatic pulmonate gastropod mollusk in the family Planorbidae, the sheep, ram's horn snails. ''Gyraulus albus'' is the type species of the ...

'' (O. F. Müller, 1774) - White ramshorn * † ''

Gyraulus alienus ''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. Foss ...

'' (Rolle, 1862) * † ''

Gyraulus andrussovi ''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. Foss ...

'' (Ali-Zade & Kabakova in Ali-Zade, 1969) * † ''

Gyraulus applanatus ''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. Fossils ...

'' (Thomä, 1845) * ''

Gyraulus argaeicus ''Gyraulus argaeicus'' is a species of small freshwater snail, an aquatic pulmonate gastropod mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mo ...

'' (Sturany, 1904) * † ''

Gyraulus arminiensis ''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. Foss ...

'' Jekelius, 1932 * † ''

Gyraulus atkinsoni ''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. Fossils ...

'' (Johnston, 1879) * † ''

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

'' (Halaváts, 1903) * ''

Gyraulus bekaensis ''Gyraulus bekaensis'' is a species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. It is endemic to Lebabon. The specific name ''bekaensis'' is named after the Beqaa Governorat ...

'' Glöer & Bössneck, 2007 Glöer P. & Bössneck U. (2007). "Zur Identität von ''Gyraulus piscinarum'' (Bourguignat, 1852) mit der Beschreibung von ''G. bekaensis'' n. sp. (Gastropoda: Planorbidae)". ''Mollusca'' 25(2): 139-146
PDF
/ref> * ''

Gyraulus biwaensis ''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. Fossils ...

'' (Preston, 1916) * † ''

Gyraulus bondartchuki ''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. Fossils ...

'' (Prysjazhnjuk, 1974) * ''

Gyraulus borealis ''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. Foss ...

'' (Lovén in Westerlund, 1875) * † ''

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

'' (Brusina, 1902) * ''

'' (Dunker, 1848) * † ''

Gyraulus circumstriatus ''Gyraulus circumstriatus'' is a species of gastropods belonging to the family Planorbidae Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod moll ...

'' (Tryon, 1866) * ''

Gyraulus convexiusculus ''Gyraulus convexiusculus'' is a species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Distribution Distribution of ''Gyraulus convexiusculus'' includes Sistan and Baluchestan ...

'' * ''

Gyraulus corinna ''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. Foss ...

'' (Gray, 1850) * † ''

Gyraulus costatus ''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. Fossils ...

'' (Klein, 1846) * ''

Gyraulus costulatus ''Gyraulus costulatus'' is a species of air-breathing freshwater snail, aquatic pulmonate gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca calle ...

'' (Krauss, 1848)Appleton C., Ghamizi M., Jørgensen A., Kristensen T. K., Lange C., Stensgaard A-S. & Van Damme D. (2009)
''Gyraulus costulatus''
In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. . Downloaded on 21 March 2011 * ''

Gyraulus crenophilus ''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. Foss ...

'' Hubendick & Radoman, 1959"''Carinogyraulus''"

, last update 27 January 2011, accessed 1 May 2011. * † ''

Gyraulus crescens ''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. Foss ...

'' ( Hilgendorf, 1867) * † ''

Gyraulus cryptornatus ''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. Foss ...

'' (Sauerzopf, 1953) * † ''

Gyraulus dealbatus ''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. Foss ...

'' (Braun in Walchner, 1851) * ''

Gyraulus deflectus ''Gyraulus deflectus'' is a species of gastropods belonging to the family Planorbidae. The species is found in Northern America. References deflectus Gastropods described in 1824 {{Planorbidae-stub ...

'

* † ''

Gyraulus denudatus ''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. Foss ...

'' ( Hilgendorf, 1867) * † ''

Gyraulus distortus ''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. Fossils ...

'' (Hyatt, 1880) * † ''

Gyraulus doricus ''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. Foss ...

'' (Bukowski, 1896) * ''

Gyraulus edgbastonensis ''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. Foss ...

'' D. S. Brown, 2001 * † ''

Gyraulus edlaueri ''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. Foss ...

'' (Sauerzopf, 1953) * ''

Gyraulus egirdirensis ''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. Fossils ...

'' Glöer & Girod, 2013 * † Gyraulus ehrenbergi (Beck, 1837) * ''

Gyraulus elenae ''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. Foss ...

'' Vinarski, Glöer & Palatov, 2013 * ''

Gyraulus essingtonensis ''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. Foss ...

'' (E. A. Smith, 1882) * ''

Gyraulus eugyne ''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. Fossils ...

'' Meier-Brook, 1983 * ''

Gyraulus euphraticus ''Gyraulus euphraticus'' is a species of gastropods belonging to the family Planorbidae Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs ...

'' (Mousson, 1874) * ''

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

'' Hubendick & Radoman, 1959 * † ''

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

'' (Lörenthey, 1902) * † ''

Gyraulus geminus ''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. Foss ...

'' (Brusina, 1897) * ''

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

(''Dunker, 1848) * † ''

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

'' (Sauerzopf, 1953) * †

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

(Sauerzopf, 1953) * ''

Gyraulus hebraicus ''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. Fossils ...

'' (Bourguignat, 1852) * † ''

Gyraulus helicophantoides ''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. Foss ...

'' (Pavlović, 1927) * † ''

Gyraulus homalosomus ''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. Foss ...

'' (Brusina, 1902) * ''

Gyraulus homsensis ''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. Foss ...

'' (Dautzenberg, 1894) * ''

Gyraulus hornensis ''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. Fossils ...

'' F. C. Baker, 1934 * ''

Gyraulus huwaizahensis ''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. Fossil ...

'' Glôer & Naser, 2005 * ''

'' Glöer & Pešić, 2007 * ''

'' (Mousson, 1859) * ''

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

'' (Finlay & Laws, 1931) * † ''

Gyraulus kleini ''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. Fossil ...

'' (Gottschick & Wenz, 1916) * ''

Gyraulus kosiensis ''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. Foss ...

'' Glöer & Bössneck, 2013 * † ''

Gyraulus krohi ''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. Foss ...

'' Neubauer & Harzhauser in Harzhauser et al., 2014 * ''

'' (Alder, 1838) * † ''

Gyraulus ludovici ''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. Foss ...

'' (Noulet, 1854) * ''

Gyraulus luguhuensis ''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. Foss ...

'' Shu, Köhler, Fu & Wang, 2013 * ''

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

'' Hesse, 1928 * † ''

Gyraulus marinkovici ''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. Fossils ...

'' (Brusina, 1892) * † ''

Gyraulus matraensis ''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. Foss ...

'' Gál et al., 1999 † * ''

Gyraulus mauritianus ''Gyraulus mauritianus'' is a species of small, mostly air-breathing, freshwater snail, aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. This species is endemic to Mauritius Mauritius ( ; french: Ma ...

'' (Morelet, 1876)Brown D. S. (1996)
''Gyraulus mauritianus''2006 IUCN Red List of Threatened Species.
Downloaded on 7 August 2007. * ''

'' Glöer & Pešić, 2007 * † ''

Gyraulus micromphalus ''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. Fossils ...

'' (Fuchs, 1870) * † ''

Gyraulus minutus ''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. Fossils ...

'' ( Hilgendorf, 1867) * † ''

Gyraulus nedici ''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. Fossils ...

'' (Brusina, 1902) * ''Gyraulus nedyalkovi'' Glöer & Georgiev, 2012 * † ''Gyraulus oecsensis'' Wenz, 1919 * † ''Gyraulus okrugljakensis'' Neubauer, Harzhauser, Kroh, Georgopoulou & Mandic, 2014 † * † ''Gyraulus oxystoma'' (Klein, 1846) * ''Gyraulus pamphylicus'' Glöer & Rähle, 2009 * ''Gyraulus parvus'' (Say, 1817) * ''

'' (Bourguignat, 1852) * † ''Gyraulus platystomus'' Nützel & Bandel, 1993 (?) * † ''Gyraulus popovici'' (Pavlović, 1927) * † ''Gyraulus primiformis'' (Sauerzopf, 1953) * † ''Gyraulus protectus'' Jekelius, 1944 * † ''Gyraulus protocrescens'' Nützel & Bandel, 1993 * † ''Gyraulus pseudhomalosomus'' (Sauerzopf, 1953) * † ''Gyraulus pseudotenuis'' ( Hilgendorf, 1867) * † ''Gyraulus ptycophorus'' (Brusina, 1892) * † ''Gyraulus pulici'' (Brusina, 1897) * † ''Gyraulus quadrangulus'' (Neumayr in Herbich & Neumayr, 1875) * † ''Gyraulus rasseri'' Neubauer, Harzhauser, Kroh, Georgopoulou & Mandic, 2014† * † ''Gyraulus revertens'' ( Hilgendorf, 1867) * † ''Gyraulus rhytidophorus'' (Brusina, 1902) * ''Gyraulus riparius''"''Lamorbis''"

, last update 27 January 2011, accessed 1 May 2011. * ''Gyraulus rossmaessleri'' (Auerswald, 1852) * ''Gyraulus stankovici'' Hadzisce, 1955 * ''Gyraulus rotula'' (Benson, 1850) * † ''Gyraulus rotundistomus'' (Sauerzopf, 1953) * † ''Gyraulus rotundostomus'' Nützel & Bandel, 1993 * † ''Gyraulus rumanus'' Wenz in Krejci-Graf & Wenz, 1932 * † ''Gyraulus sabljari'' (Brusina, 1892) * † ''Gyraulus sachsenhoferi'' Harzhauser & Neubauer in Harzhauser et al., 2012 * † ''Gyraulus seibersdorfensis'' (Sauerzopf, 1953) * ''

'' Glöer & Pešić, 2007 * ''Gyraulus sivalensis'' (Clessin, 1884) * † ''Gyraulus soceni'' Jekelius, 1944 * † ''Gyraulus solenoeides'' (Lörenthey, 1902) * ''Gyraulus spirillus'' (Gould, 1859) * ''Gyraulus stankovici'' Hadžišče, 1953 * † ''Gyraulus steinheimensis (''Hilgendorf, 1867) * † ''Gyraulus subhemistoma'' (d'Orbigny, 1852) * † ''Gyraulus sulcatus'' ( Hilgendorf, 1867) * † ''Gyraulus supremus'' ( Hilgendorf, 1867) * † ''Gyraulus symmetricus'' (Sauerzopf, 1953) * ''Gyraulus taseviensis'' Glöer & Girod, 2013 * ''Gyraulus terekholicus'' (Prozorova & Starobogatov, 1997) * ''Gyraulus terraesacrae'' Rensch, 1934 * ''Gyraulus tokyoensis'' (Mori, 1938) * ''Gyraulus transsylvanicus'' (Neumayr in Herbich & Neumayr, 1875) † * ''Gyraulus trapezoides'' Polinski, 1929 * † ''Gyraulus triquetrus'' ( Hilgendorf, 1867) * † ''Gyraulus trochiformis'' (Stahl, 1824) * † ''Gyraulus trolli'' (Sauerzopf, 1953) * † ''Gyraulus turislavicus'' Jekelius, 1944 * Gyraulus vermicularis (Gould, 1847) * † ''Gyraulus vermicularis'' (Stoliczka, 1862) * † ''Gyraulus verticillus'' (Brusina, 1892) * † ''Gyraulus vrapceanus'' Neubauer, Harzhauser, Kroh, Georgopoulou & Mandic, 2014 * ''Gyraulus waterhousei'' (Clessin, 1885) * † ''Gyraulus zemendorfensis'' (Sauerzopf, 1953) ;Species inquirenda: * ''Gyraulus acutus'' Clessin, 1907 * ''Gyraulus percarinatus'' Paraense, 2000 name unavailable under ICZN Art. 16.4) ;Species brought into synonymy: * ''Gyraulus deformis'' Hartmann, 1844: synonym of ''

'' (Férussac, 1807) * † ''Gyraulus trochiformis applanatus'' (Thomä, 1845): synonym of † ''

'' (Thomä, 1845) * † ''Gyraulus (Gyraulus) trochiformis applanatus'' var. ''ludovici'' (Noulet, 1854): synonym of † ''

'' (Noulet, 1854) * † ''Gyraulus (Gyraulus) trochiformis kleini'' var. ''aequeumbilicatus'' (Hilgendorf, 1867): synonym of † ''

'' (Gottschick & Wenz, 1916) * † ''Gyraulus (Gyraulus) trochiformis'' kleini var. ''subinvolutus'' Gottschick, 1920: synonym of † ''

'' (Gottschick & Wenz, 1916) * † ''Gyraulus (Gyraulus) trochiformis'' kleini var. ''subkleini'' Gottschick, 1920: synonym of † ''

'' (Gottschick & Wenz, 1916) * † ''Gyraulus (Gyraulus) trochiformis steinheimensis'' var. ''parvus'' (Hilgendorf, 1867): synonym of † ''Gyraulus steinheimensis'' ( Hilgendorf, 1867) * † ''Gyraulus (Gyraulus) trochiformis subhemistoma'' var. ''teres'' (Hilgendorf, 1867): synonym of † ''

'' ( Hilgendorf, 1867) * † ''Gyraulus (Gyraulus) trochiformis subhemistoma'' var. ''triquetrus'' (Hilgendorf, 1867): synonym of † ''Gyraulus triquetrus ('' Hilgendorf, 1867) * † ''Gyraulus (Gyraulus) trochiformis trochiformis'' var. ''elegans'' (Hilgendorf, 1867): synonym of † ''Gyraulus trochiformis'' (Stahl, 1824) * † ''Gyraulus (Gyraulus) trochiformis trochiformis'' var. ''turbiniformis'' (von Zieten, 1832): synonym of † ''Gyraulus trochiformis'' (Stahl, 1824)

References

External links

BioLib taxonomy info''Gyraulus'' images
at Consortium for the Barcode of Life {{Taxonbar, from=Q616746 Gyraulus,