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. Fossils attributed to Gyraulus sp. have been found in the lakebottom sediments of the Yixian Formation in China, dating to 125 million years ago.
Description
Shells of the species within this genus are small, and are mostly almost planispiral in their coiling.Distribution and habitat
The distribution of this genus is Holarctic. These snail snails live on water plants in freshwater.Species
The following species are recognised in the genus Gyraulus:- Gyraulus acronicus
- †Gyraulus aegaeus
- †Gyraulus albertanus
- Gyraulus albidus
- Gyraulus albus
- †Gyraulus alienus
- Gyraulus amplificatus
- Gyraulus amuricus
- †Gyraulus andrussovi
- †Gyraulus antunesi
- †Gyraulus applanatus
- Gyraulus argaeicus
- †Gyraulus arminiensis
- Gyraulus associatus
- Gyraulus atkinsoni
- †Gyraulus austroalpinus
- †Gyraulus bachmayeri
- Gyraulus barrackporensis
- Gyraulus bakeri
- †Gyraulus bakonicus
- †Gyraulus balmensis
- Gyraulus balteatus
- Gyraulus bekaensis
- †Gyraulus bigueti
- Gyraulus biwaensis
- †Gyraulus blazkai
- †Gyraulus bondartchuki
- Gyraulus borealis
- †Gyraulus bosqueti
- †Gyraulus brlici
- Gyraulus brongersmai
- †Gyraulus brusinai
- †Gyraulus calamensis
- Gyraulus centrifugops
- Gyraulus centrifugus
- †Gyraulus ceratioides
- †Gyraulus chaenostomus
- †Gyraulus chapmani
- Gyraulus chinensis
- Disk Gyro (Gyraulus circumstriatus)
- Gyraulus clymene
- Gyraulus cockburni
- †Gyraulus connivens
- Gyraulus connollyi
- †Gyraulus constans
- Gyraulus convexiusculus
- Gyraulus cordatus
- Gyraulus corinna
- †Gyraulus costatus
- Gyraulus costulatus
- †Gyraulus courpoilensis
- Gyraulus crenophilus
- †Gyraulus crescens
- Nautilus Ram's-horn Snail (Gyraulus crista)
- †Gyraulus cryptornatus
- †Gyraulus dalmaticus
- †Gyraulus dealbatus
- Gyraulus deflectus
- †Flexed Gyro (Gyraulus deflectus)
- Gyraulus demissus
- †Gyraulus denudatus
- †Gyraulus dimitrovici
- †Gyraulus distortus
- †Gyraulus dongcunensis
- †Gyraulus dongcunensis
- †Gyraulus doricus
- †Gyraulus doseni
- †Gyraulus douvillei
- Gyraulus edgbastonensis
- †Gyraulus edlaueri
- Gyraulus egirdirensis
- Gyraulus ehrenbergi
- Gyraulus eichwaldi
- Gyraulus elenae
- †Gyraulus elisus
- Gyraulus essingtonensis
- Gyraulus eugyne
- Gyraulus euphraticus
- Gyraulus feuerborni
- †Gyraulus florissantensis
- Gyraulus fontinalis
- †Gyraulus formosus
- †Gyraulus fragilis
- Gyraulus frigidarius
- †Gyraulus fuchsi
- †Gyraulus gaoyouensis
- †Gyraulus geminus
- Gyraulus gilberti
- †Gyraulus gladilini
- †Gyraulus globosus
- †Gyraulus goetzendorfensis
- †Gyraulus goussardianus
- †Gyraulus gracilis
- Gyraulus hebraicus
- †Gyraulus helicophantoides
- Gyraulus hesperus
- †Gyraulus heudei
- †Gyraulus hians
- Gyraulus hiemantium
- Gyraulus hindsianus
- †Gyraulus hoernesi
- †Gyraulus homalosomus
- Gyraulus homsensis
- †Gyraulus horasanensis
- Tuba Gyro (Gyraulus hornensis)
- Gyraulus hubendicki
- †Gyraulus huguenini
- Gyraulus huronensis
- Gyraulus huwaizahensis
- †Gyraulus ignoratus
- Gyraulus illibatus
- Gyraulus infirmus
- Gyraulus infraliratus
- †Gyraulus inopinatus
- †Gyraulus inornatus
- Gyraulus ioanis
- Gyraulus isingi
- Gyraulus iwaotakii
- Gyraulus janinensis
- †Gyraulus jugleri
- †Gyraulus jukici
- †Gyraulus jurkovici
- Gyraulus kahuica
- †Gyraulus katurici
- †Gyraulus keideli
- †Gyraulus kleini
- Gyraulus kosiensis
- †Gyraulus kosovensis
- †Gyraulus kraussii
- †Gyraulus krohi
- Gyraulus kruglowiae
- Gyraulus labiatus
- Gyraulus ladacensis
- Smooth Ram’s Horn Snail (Gyraulus laevis)
- †Gyraulus laiwuensis
- †Gyraulus lazici
- †Gyraulus lendli
- †Gyraulus liaoxiensis
- Gyraulus limbatus
- †Gyraulus lineolatus
- †Gyraulus lorentheyi
- †Gyraulus loryi
- †Gyraulus ludovici
- Gyraulus luguhuensis
- Gyraulus lychnidicus
- †Gyraulus macroconcha
- Gyraulus malayensis
- †Gyraulus marinkovici
- Gyraulus marocanus
- †Gyraulus matheroni
- †Gyraulus matraensis
- Gyraulus mauritianus
- Gyraulus meierbrooki
- Gyraulus meridionalis
- Gyraulus messonghi
- †Gyraulus micromphalus
- Gyraulus mienanus
- †Gyraulus militaris
- Gyraulus minusculus
- †Gyraulus mirabilis
- Gyraulus montrouzieri
- †Gyraulus multicingulatus
- †Gyraulus nedici
- Gyraulus nedyalkovi
- †Gyraulus nematophorus
- †Gyraulus nisseanus
- †Gyraulus novaki
- Gyraulus noziriensis
- †Gyraulus nusici
- †Gyraulus oecsensis
- †Gyraulus okrugljakensis
- †Gyraulus oncostomus
- †Gyraulus orahovacensis
- †Gyraulus oxystoma
- †Gyraulus pachychilus
- †Gyraulus palaeoalbus
- Gyraulus pamphylicus
- Gyraulus pankongensis
- †Gyraulus parvulus
- †Gyraulus parvulus
- Ash Gyro (Gyraulus parvus)
- †Gyraulus pavlovici
- †Gyraulus peruzzii
- †Gyraulus phacecercus
- Gyraulus piscinarum
- †Gyraulus placidus
- †Gyraulus planoconcavus
- †Gyraulus planorbiformis
- †Gyraulus platystomus
- †Gyraulus pleiopleurus
- †Gyraulus pliosibericus
- †Gyraulus polycymus
- †Gyraulus ponticus
- †Gyraulus popovici
- †Gyraulus porcellaneus
- †Gyraulus praeponticus
- †Gyraulus praesibericus
- Gyraulus prasongi
- †Gyraulus primiformis
- Gyraulus proclivis
- †Gyraulus protectus
- †Gyraulus protocrescens
- †Gyraulus pseudhomalosomus
- †Gyraulus pseudotenuis
- †Gyraulus ptychostomus
- †Gyraulus ptycophorus
- †Gyraulus pulici
- Himehiramakimizumaimai (Gyraulus pulcher
- †Gyraulus quadrangulus
- †Gyraulus rabensis
- †Gyraulus rasseri
- †Gyraulus revertens
- †Gyraulus rhytidophorus
- Sjöskivsnäcka (Gyraulus riparius)
- Gyraulus rossiteri
- Gyraulus rossmaessleri
- †Gyraulus rotella
- Gyraulus rotula
- †Gyraulus rotundistomus
- †Gyraulus rotundostomus
- †Gyraulus rumanus
- †Gyraulus sabljari
- †Gyraulus sachsenhoferi
- †Gyraulus saltensis
- †Gyraulus sauerzopfi
- †Gyraulus scabiosus
- Gyraulus scottianus
- †Gyraulus sebetinus
- †Gyraulus seibersdorfensis
- Gyraulus sentaniensis
- Gyraulus shasi
- Gyraulus siamensis
- †Gyraulus sibinjensis
- †Gyraulus sigillatus
- Gyraulus sivalensis
- †Gyraulus slavonicus
- †Gyraulus soceni
- †Gyraulus solenoeides
- Gyraulus spirillus
- †Gyraulus spratti
- †Gyraulus spretus
- Gyraulus stankovici
- †Gyraulus steinheimensis
- †Gyraulus stenocyclotus
- †Gyraulus stoppanii
- Gyraulus stromi
- †Gyraulus subhemistoma
- †Gyraulus subverticillus
- †Gyraulus sulfureus
- Gyraulus sumatranus
- †Gyraulus supremus
- †Gyraulus symmetricus
- Gyraulus takhteevi
- Gyraulus taseviensis
- †Gyraulus tenuistriatus
- Gyraulus terekholicus
- Gyraulus terraesacrae
- †Gyraulus tetracarinatus
- Gyraulus tokyoensis
- †Gyraulus transsylvanicus
- Gyraulus trapezoides
- †Gyraulus tressinensis
- †Gyraulus triquetrus
- †Gyraulus trochiformis
- †Gyraulus trolli
- †Gyraulus turislavicus
- Gyraulus umbiliciferus
- Gyraulus vermicularis
- †Gyraulus verticilloides
- Gyraulus velifer
- Gyraulus verticillus
- †Gyraulus veternus
- †Gyraulus virgatus
- †Gyraulus vrapceanus
- Waterhouse’s Freshwater Snail (Gyraulus waterhousei)
- Gyraulus xingtian
- †Gyraulus xinlitunensis
- †Gyraulus yongkangensis
- †Gyraulus yuanchuensis
- †Gyraulus zemendorfensis
- Gyraulus zilchianus
- †Gyraulus zoebeleini
- †''Gyraulus zoltani''