abyssinicus, Bulinus abyssinicus Von Martens, 1866
aclopus, Planorbarius aclopus Bourguignat, 1856 - syn of: Planorbarius dufourii (Graells, 1846)
acronicus, Gyraulus acronicus (Férussac, 1807)
acronicus, Planorbis acronicus Férussac, 1807 - syn of: Gyraulus acronicus (Férussac, 1807)
acutus, Gyraulus acutus Clessin, 1907
adansonii, Afrogyrus adansonii Gray, 1850 - syn of: Africanogyrus coretus (Blainville, 1826)
adelosius, Planorbarius adelosius (Bourguignat, 1859)
adhaerans, Protancylus adhaerans Sarasin & Sarasin, 1898
aduncus, Ancylus aduncus Gould, 1847
aegaeus, Gyraulus aegaeus Willmann, 1981
aeruginosum, Drepanotrema aeruginosum (Morelet, 1851)
africanus, Bulinus africanus Krauss, 1848
agardhi, Anisus agardhi Starobogatov, 2003
agraulus, Planorbis agraulus Bourguignat, 1864
aguadae, Laevapex aguadae (Goodrich & Van Der Schalie, 1937)
ahenum, Drepanotrema ahenum Baker, 1930
alabamensis, Menetus alabamensis Pilsbry, 1895
alabamensis, Amphigyra alabamensis Pilsbry, 1906
alabamensis avus, Planorbis alabamensis avus Pilsbry, 1905 - syn of: Micromenetus dilatatus avus (Pilsbry, 1905)
albertanus, Gyraulus albertanus (Clessin, 1877) † (FOSSIL)
albertanus, Dilatata albertanus Moser, 2009 † - syn of: Gyraulus albertanus (Clessin, 1877) † (FOSSIL)
albertisi, Physastra albertisi Clessin, 1866 - syn of: Physa albertisi (Clessin, 1866)
albescens, Planorbis albescens Spix, 1827 - syn of: Biomphalaria glabrata (Say, 1818)
albicans, Planorbis albicans Pfeiffer, 1839 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
albidus, Gyraulus albidus Radoman, 1953
albus, Gyraulus albus (Müller, 1774)
albus, Gyraulus albus Mori, 1938 - syn of: Anisus japonicus (Von Martens, 1867)
albus cinctutus, Planorbis albus cinctutus Westerlund, 1871 - syn of: Gyraulus albus (Müller, 1774)
albus noziriensis, Gyraulus albus noziriensis Mori, 1938 - syn of: Anisus noziriensis Mori, 1938
alcalalensis, Planorbarius alcalalensis Jodot, 1958
alexandrina, Biomphalaria alexandrina (Ehrenberg, 1831)
aliciae, Glyptophysa aliciae (Reeve, 1862)
alienus, Gyraulus alienus (Rolle, 1862)
almaatina, Polypylis almaatina Starobogatov & Mamilova, 1970
alnorbismelleus, Planorbis alnorbismelleus Lutz, 1918 - syn of: Drepanotrema lucidum (Pfeiffer, 1839)
alta, Ancylastrum alta Pilsbry & Beecher, 1927
altissimus, Gyraulus altissimus (Baker, 1919)
alutae, Ancylus alutae Jekelius, 1932 † (FOSSIL)
amauroneus, Choanomphalus amauroneus Lindholm, 1909 - syn of: Choanomphalus amauronius Bourguignat, 1862
amauronius, Choanomphalus amauronius Bourguignat, 1862
amauronius angulatus, Choanomphalus amauronius angulatus (Dybowski & Grochmalicki, 1925)
amauronius euristomus, Choanomphalus amauronius euristomus Kozhov, 1936 - syn of: Choanomphalus eurystomus Lindholm, 1909
amauronius westerlundianus, Choanomphalus amauronius westerlundianus Lindholm, 1909
amazonica, Biomphalaria amazonica Paraense, 1966
ameliae, Uncancylus ameliae Pilsbry, 1920
amiculus, Gyraulus amiculus Rzehak, 1893 † - syn of: Gyraulus dealbatus (Braun, 1851) † (FOSSIL)
ammon, Planorbella ammon Gould, 1855
amnicola, Ancylus amnicola De Stefani, 1883 - syn of: Ancylus fluviatilis Müller, 1774
amphiglyptus, Australorbis amphiglyptus Pilsbry, 1951 - syn of: Biomphalaria tenagophila (D'Orbigny, 1835)
amplificatus, Gyraulus amplificatus Mori, 1938
amuricus, Anisus amuricus Prozorova & Starobogatov, 1998
anastasiae, Trochorbis anastasiae Izzatullaev, 1973
anatinum, Drepanotrema anatinum (D'Orbigny, 1835)
anceps, Helisoma anceps (Menke, 1830)
anceps bartschii, Helisoma anceps bartschii Baker, 1945
anceps idahoense, Helisoma anceps idahoense Baker, 1945
anceps politum, Helisoma anceps politum Baker, 1945
anceps royalense, Helisoma anceps royalense Walker, 1909
ancyliformis, Gundlachia ancyliformis Pfeiffer, 1850 - syn of: Gundlachia radiata (Guilding, 1828)
ancylostoma chiapensis, Planorbis ancylostoma chiapensis Fischer & Crosse, 1886 - syn of: Helisoma foveale (Menke, 1830)
ancylostomus, Planorbis ancylostomus Crosse & Fischer, 1879 - syn of: Helisoma foveale (Menke, 1830)
andecola, Biomphalaria andecola (D'Orbigny, 1835)
andecolus, Taphius montanus andecolus D'Orbigny
andrussovi, Gyraulus andrussovi (Ali-Zade & Kabakova, 1969)
andrussovianus, Choanomphalus andrussovianus Dybowski & Grochmalicki, 1925 - syn of: Choanomphalus maacki andrussowianus (Lindholm, 1909)
andrussowianus, Choanomphalus maacki andrussowianus Lindholm
angarensis, Kolhymorbis angarensis (Dybowski & Grochmalicki, 1925)
angasolensis, Gyraulus angasolensis Dybowski, 1912 - syn of: Gyraulus stroemi (Westerlund, 1881)
angolensis, Bulinus angolensis Morelet, 1866
angulatus, Anisus angulatus (Clessin, 1877) † (FOSSIL)
angulatus, Planorbis angulatus Chitty, 1853 - syn of: Drepanotrema cimex (Moricand, 1839)
angulatus, Choanomphalus amauronius angulatus Dybowski & Grochmalicki
angulatus, Valvatomphalus angulatus Dybowski & Grochmalicki, 1925 - syn of: Choanomphalus amauronius angulatus (Dybowski & Grochmalicki, 1925)
angulosa, Biomphalaria angulosa Mandahl-Barth, 1957
angustus, Segmentorbis angustus (Jickeli, 1874)
anitense, Fossulorbis cultratum anitense Cooper
anitensis, Anisus anitensis Cooper, 1893 - syn of: Fossulorbis cultratum anitense (Cooper, 1893)
annandalei, Gyraulus annandalei (Germain, 1918)
annuliformis, Choanomphalus annuliformis Kozhov, 1936
anomphalus, Choanomphalus anomphalus Dybowski, 1901
anterior, Segmentina loczyi anterior Sauerzopf (FOSSIL)
antiguensis, Planorbis antiguensis Sowerby, 1877 - syn of: Biomphalaria glabrata (Say, 1818)
antilibanensis, Planorbis planorbis antilibanensis Blanckenhorn (FOSSIL)
antillarum, Planorbis antillarum Beck, 1838 - syn of: Biomphalaria glabrata (Say, 1818)
antiochianus, Planorbis antiochianus Locard, 1883 - syn of: Planorbis planorbis (Linnaeus, 1758)
antiquitus, Planorbis antiquitus Aldrich, 1911
antrosa, Helisoma antrosa Conrad, 1834 - syn of: Helisoma anceps (Menke, 1830)
aorus, Choanomphalus aorus Bourguignat, 1860
aperta, Physastra aperta (Sowerby, 1874)
apertus, Gyraulus apertus Von Martens, 1897
apiculata, Bulinus apiculata Morelet, 1868 - syn of: Pyrgophysa forskalii (Ehrenberg, 1831)
applanatus, Gyraulus applanatus (Thomä, 1845) † (FOSSIL)
applanatus kleini, Gyraulus applanatus kleini Gottschick & Wenz, 1916 † - syn of: Gyraulus kleini (Gottschick & Wenz, 1916) † (FOSSIL)
arabatzis, Planorbarius corneus arabatzis Reischütz, Reischütz & Fischer
arabica, Biomphalaria arabica (Melvill & Ponsonby, 1896)
aracasnsis, Planorbis aracasnsis Gundlach, 1857 - syn of: Drepanotrema anatinum (D'Orbigny, 1835)
arcticus, Armiger arcticus Mörch, 0 - syn of: Gyraulus crista (Linnaeus, 1758)
argaeicus, Gyraulus argaeicus (Sturany, 1904)
arizonensis, Planorbis arizonensis Pilsbry & Ferriss, 1915 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
armenia, Ancylus armenia Böttger, 1881
armigera, Planorbula armigera (Say, 1821)
armigera wheatleyi, Planorbula armigera wheatleyi Lea, 1858
arminiensis, Gyraulus arminiensis Jekelius, 1932 † (FOSSIL)
arminiensis contractus, Gyraulus arminiensis contractus Jekelius, 1932 † (FOSSIL)
arminiensis depressus, Gyraulus arminiensis depressus Jekelius, 1932 † (FOSSIL)
artificiosus, Ancylus artificiosus Pallary, 1920 - syn of: Ancylus fluviatilis Müller, 1774
ashangiensis, Ancylus ashangiensis Brown, 1965
asymmetricus, Gyraulus fuchsi asymmetricus Sauerzopf
atkinsoni, Gyraulus atkinsoni (Johnston, 1879)
atrophius, Planorbarius atrophius Jodot, 1958 - syn of: Planorbarius alcalalensis Jodot, 1958
attenuata, Physastra attenuata (Sowerby, 1874)
atticus, Planorbis atticus Bourguignat, 1852
aurantius, Bulinus aurantius Carpenter, 1857 - syn of: Mexinauta aurantia (Carpenter, 1857)
austeni, Camptoceras austeni Blanford, 1871
australianus, Bulinus australianus Conrad
australiensis, Helicorbis australiensis Smith, 1882
austroalpinus, Planorbis austroalpinus Harzhauser & al., 2012 † (FOSSIL)
avakubiensis, Gyraulus avakubiensis (Pilsbry & Bequaert, 1927)
avecenninae, Segmentina avecenninae Izzatullaev, 1980
avus, Micromenetus dilatatus avus Pilsbry
aymara, Biomphalaria aymara Valdovinos & Stuardo, 1991
bachmayeri, Gyraulus bachmayeri Schlickum & Strauch, 1979
baconi, Ferrissia baconi (Bourguignat, 1853)
bactriana, Helicorbis bactriana Izzatullaev, 1980
badia, Glyptophysa badia (Adams & Angas, 1864)
bahiensis, Biomphalaria glabrata bahiensis Dunker
bahiensis, Planorbis bahiensis Dunker, 1886 - syn of: Biomphalaria glabrata bahiensis (Dunker, 1886)
baicalicus, Anisus baicalicus (Dybowski, 1913)
bakeri, Taphius montanus bakeri D'Orbigny
bakonicus, Gyraulus bakonicus (Halaváts, 1903)
balatonica, Fuchsogyra balatonica Bandel, 2010 † (FOSSIL)
balizacensis, Anisus balizacensis (Peyrot, 1932) † (FOSSIL)
banaticus, Planorbarius banaticus Bourguignat, 1859 - syn of: Planorbarius corneus (Linnaeus, 1758)
barettii, Planorbarius barettii (Sacco, 1886) † (FOSSIL)
barettii ceresolensis, Planorbarius barettii ceresolensis (Sacco, 1889) † (FOSSIL)
barilensis, Burnupia barilensis Moricand, 1845 - syn of: Uncancylus concentricus (D'Orbigny, 1835)
barrackporensis, Gyraulus barrackporensis Clessin, 1886
barthi, Biomphalaria barthi Brown, 1973
bartschii, Helisoma anceps bartschii Baker
bassarabicus, Gyraulus quadrangulus bassarabicus Macarovici (FOSSIL)
bathybius, Choanomphalus bathybius Beckmann & Starobogatov, 1975
bathybius meridianus, Choanomphalus bathybius meridianus Beckmann & Starobogatov, 1975
baudoni, Planorbis baudoni Deshayes, 1863 † - syn of: Anomalorbis baudoni (Deshayes, 1863) † (FOSSIL)
bavaricus, Anisus bavaricus (Westerlund, 1885)
bavayi, Planorbis bavayi Croose, 1875 - syn of: Drepanotrema cimex (Moricand, 1839)
bavayi, Bulinus bavayi Dautzenberg, 1894
bayacalifornica, Ferrissia bayacalifornica Walker, 1924
beccarii, Bulinus beccarii Paladilhe, 1872
becki, Planorbis becki Dunker, 1886 - syn of: Biomphalaria glabrata (Say, 1818)
beddomei, Gundlachia beddomei (Pettas)
bekaensis, Gyraulus bekaensis Glöer & Bössneck, 2007
belizensis, Biomphalaria belizensis (Crosse & Fischer, 1878)
belnensis, Planorbarius belnensis (Tournouër, 1866) † (FOSSIL)
benguelensis, Lentorbis benguelensis (Dunker, 1845)
benoitianus, Ancylus benoitianus Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
berendti, Planorbis berendti Tryon, 1866 - syn of: Biomphalaria obstructa (Morelet, 1849)
berlandierianus, Bulinus berlandierianus Binney, 1865 - syn of: Mexinauta nitens (Philippi, 1841)
biangulatus, Planorbis biangulatus Sowerby, 1878 - syn of: Biomphalaria tenagophila (D'Orbigny, 1835)
bicarinatus, Choanomphalus bicarinatus Dybowski, 1901 - syn of: Choanomphalus maacki (Gerstfeldt, 1859)
bicarinatus, Gyraulus bicarinatus Mandahl-Barth, 1954
bicarinatus, Planorbis bicarinatus Say, 1817 - syn of: Helisoma anceps (Menke, 1830)
bielzi, Armiger bielzi Kimakowicz, 1884 - syn of: Gyraulus crista (Linnaeus, 1758)
bigueti, Gyraulus bigueti (Fontannes, 1881)
binneyi, Planorbella trivolvis binneyi Tryon
binneyi randolphi, Helisoma binneyi randolphi Baker, 1945 - syn of: Planorbella trivolvis randolphi Baker, 1945
biwaensis, Gyraulus biwaensis (Preston, 1916)
biwaensis, Planorbis biwaensis Preston, 1916 - syn of: Gyraulus biwaensis (Preston, 1916)
blanfordi, Gyraulus blanfordi Brown, 1973
blauneri, Planorbis blauneri Germain, 1921 - syn of: Biomphalaria glabrata (Say, 1818)
bogatovi, Kolhymorbis bogatovi Zatrawkin & Moskvicheva, 1985
bolgradensis, Planorbis bolgradensis Prysjazhnjuk & Kovalenko, 1986 † (FOSSIL)
bolivianus, Planorbis bolivianus Dunker, 1886 - syn of: Biomphalaria glabrata (Say, 1818)
bondartchuki, Gyraulus bondartchuki (Prysjazhnjuk, 1974)
bonushenricus, Amerianna bonushenricus (Adams & Angas, 1864)
borealis, Anisus borealis (Lovén, 1875)
borealis, Planorbis borealis Westerlund, 1875 - syn of: Gyraulus acronicus (Férussac, 1807)
borealis dershavini, Planorbis borealis dershavini Rozen, 1927 - syn of: Anisus kamtschaticus (Westerlund, 1876)
borellii, Planorbarius borellii (Brusina, 1892) † (FOSSIL)
bosqueti, Planorbis bosqueti Glibert & de Heinzelin, 1954 † (FOSSIL)
boucardi, Pierosoma tenuis boucardi Fischer & Crosse
boucardiana, Biomphalaria boucardiana (Preston, 1907)
bouei, Planorbis bouei Pavlovic, 1932 † (FOSSIL)
bourgeoisi, Ancylus bourgeoisi Deshayes, 1863 † (FOSSIL)
bradshawi, Isidorella bradshawi Iredale, 1943
brazieri, Isidorella brazieri (Smith, 1882)
brlici, Gyraulus brlici Brusina, 1897
brogniartianus, Menetus brogniartianus (Lea, 1842)
brondeli, Ancylus brondeli Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
brondeli, Planorbis brondeli Raymond, 1853 - syn of: Planorbis moquini Réquien, 1848
browni, Bulinus browni Jelnes, 1979
brunnea, Ancylastrum brunnea Walker, 1924
brunnensis, Anisus brunnensis (Sauerzopf, 1953) † (FOSSIL)
brusinai, Gyraulus brusinai (Lörenthey, 1894)
bugense, Segmentina bugense Gozhik & Prysjazhnjuk, 1978 † (FOSSIL)
buldowskii, Camptoceras buldowskii Starobogatov & Prozorova, 1990
buriaticus, Anisus buriaticus Prozorova & Starobogatov, 1997
burnupi, Ferrissia burnupi Walker, 1912
caffra, Ancylastrum caffra (Krauss, 1848)
cahawbensis, Rhodacmea cahawbensis (Walker, 1917)
calatha, Segmentina calatha Benson, 1850
calculiformis, Anisus calculiformis (Sandberger, 1874)
caliculatus, Ancylus caliculatus Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
californica, Laevapex californica (Rowell, 1863)
californiensis, Pierosoma tenue californiensis Baker
californiensis, Helisoma californiensis Baker, 1940 - syn of: Pierosoma tenue californiensis (Baker, 1940)
callistus, Gyraulus callistus Bourguignat, 1881 - syn of: Gyraulus lenapalus (Bourguignat, 1881)
caloderma, Pierosoma caloderma (Pilsbry, 1923)
calverti, Uncancylus calverti Pilsbry, 1920
camerunensis, Biomphalaria camerunensis Böttger, 1941
camerunensis, Australorbis camerunensis Lucena, 1953 - syn of: Biomphalaria tenagophila (D'Orbigny, 1835)
camerunensis, Bulinus camerunensis Mandahl-Barth, 1957
camerunensis wansoni, Biomphalaria camerunensis wansoni Mandahl-Barth, 1957
campanulata, Planorbella campanulata (Say, 1821)
campanulata collinsi, Planorbella campanulata collinsi Baker, 1939
campanulata dalli, Planorbella campanulata dalli Baker, 1945
campanulata pleistocenicum, Planorbella campanulata pleistocenicum Baker, 1945
campanulata rideauense, Planorbella campanulata rideauense Baker, 1945
campanulatum, Helisoma campanulatum Say, 1821 - syn of: Planorbella campanulata (Say, 1821)
campanulatus, Planorbis campanulatus Say, 1821 - syn of: Planorbella campanulata (Say, 1821)
campestris, Planorbula campestris Dawson, 1875
canescens, Bulinus canescens (Morelet, 1868)
cannarum, Planorbis cannarum Morelet, 1849 - syn of: Biomphalaria obstructa (Morelet, 1849)
canonicus, Planorbis canonicus Cousin, 1887 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
cantori, Hippeutis cantori (Benson, 1850)
capensis, Ancylastrum capensis Walker, 1912
capitis, Hippeutis capitis Annandale, 1922
capuliformis, Ancylus capuliformis Moquin-Tandon, 1855 - syn of: Ancylus fluviatilis Müller, 1774
capuloides, Ancylus capuloides Porro, 1838 - syn of: Ancylus fluviatilis Müller, 1774
caribaeum, Helisoma caribaeum D'Orbigny, 1845 - syn of: Helisoma foveale (Menke, 1830)
caribaeum cubense, Pierosoma caribaeum cubense Baker, 1945 - syn of: Helisoma foveale (Menke, 1830)
caribaeum guatemalense, Pierosoma caribaeum guatemalense Clessin, 0 - syn of: Helisoma foveale guatemalense (Clessin, 1889)
caribaeus chiapensis, Helisoma caribaeus chiapensis Fischer & Crosse, 1886 - syn of: Helisoma foveale (Menke, 1830)
carinatus, Planorbis carinatus Müller, 1774
carinatus, Neoplanorbis carinatus Walker, 1908
carinatus dilatatus, Planorbis carinatus dilatatus Clessin, 1873 - syn of: Planorbis kubanicus Soldatenko & Starobogatov, 1998
carinea, Anisus carinea (Westerlund, 1897)
cariosa, Ancylus cariosa Paulucci, 1882 - syn of: Ancylus fluviatilis Müller, 1774
carringtoni, Lentorbis carringtoni Azevedo, 1961
carvalhoi, Planorbarius carvalhoi Da Silva, 0 - syn of: Planorbarius dufourii (Graells, 1846)
castanaeonitens, Drepanotrema castanaeonitens Pilsbry & Vanatta, 1896
castaneonitens, Planorbis castaneonitens Pilsbry & Vanatta, 1896 - syn of: Drepanotrema lucidum (Pfeiffer, 1839)
caucasica, Segmentina caucasica Kruglov & Soldatenko, 1997
caurina, Ferrissia caurina (Cooper, 1870)
cawstoni, Ferrissia cawstoni Walker, 1924
celebensis, Miratesta celebensis Sarasin & Sarasin, 1898
centervillensis, Menetus centervillensis (Tryon, 1866)
centimetralis, Planorbis centimetralis Lutz, 1918 - syn of: Biomphalaria straminea (Dunker, 1848)
centrifugops, Anisus centrifugops Prozorova & Starobogatov, 1997
centrifugus, Anisus centrifugus (Westerlund, 1897)
ceresolensis, Planorbarius barettii ceresolensis Sacco (FOSSIL)
cernicus, Bulinus cernicus Morelet, 1867
cestasensis, Ancylus cestasensis Peyrot, 1932 † (FOSSIL)
ceylanica, Ferrissia ceylanica (Benson, 1864)
chaenostomus, Gyraulus chaenostomus (Brusina, 1902)
chapalensis, Pierosoma tenuis chapalensis Pilsbry
chapalensis, Planorbis chapalensis Pilsbry, 1920 - syn of: Pierosoma tenuis chapalensis (Pilsbry, 1920)
charpenterianus, Ancylus charpenterianus Bourguignat, 1853
charteus, Anisus charteus (Held, 1837)
charteus bavaricus, Planorbis charteus bavaricus Westerlund, 1885 - syn of: Anisus bavaricus (Westerlund, 1885)
chereshnevi, Anisus chereshnevi Prozorova & Starobogatov, 1997
chilensis, Planorbis chilensis Anton, 1839 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
chinensis, Gyraulus chinensis (Dunker, 1848)
chinensis spirillus, Gyraulus chinensis spirillus Gould, 1859 - syn of: Gyraulus spirillus Gould, 1859
chinensis tokyoensis, Gyraulus chinensis tokyoensis Mori, 1938 - syn of: Gyraulus tokyoensis Mori, 1938
choanomphala, Biomphalaria choanomphala (Von Martens, 1879)
chudeaui, Ferrissia chudeaui Germain, 1917
cimex, Drepanotrema cimex (Moricand, 1839)
cimex, Fossulorbis cimex Aguayo, 1935 - syn of: Drepanotrema cimex (Moricand, 1839)
circumlineatus, Planorbis circumlineatus Shuttleworth, 1854 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
circumstriatus, Gyraulus circumstriatus (Tryon, 1866)
clathratus, Gyraulus clathratus Brusina, 1884 - syn of: Gyraulus okrugljakensis Neubauer & al., 2014
clausulatus, Segmentina clausulatus Férussac, 1820 - syn of: Segmentina nitida (Müller, 1774)
clavulata, Bulinus clavulata Morelet, 1868 - syn of: Pyrgophysa forskalii (Ehrenberg, 1831)
clessini, Segmentina clessini (Westerlund, 1873)
clessiniana, Ferrissia clessiniana (Jickeli, 1882)
clevei, Planorbis clevei Cousin, 1887 - syn of: Biomphalaria occidentalis Paraense, 1981
clifdeni, Ferrissia clifdeni Connolly, 1939
clymene, Nautilinus clymene (Shuttleworth, 1852)
cockburni, Gyraulus cockburni Godwin-Austen, 1883
colchica, Hippeutis colchica Lindholm, 0 - syn of: Hippeutis complanatus (Linnaeus, 1758)
collinsi, Planorbella campanulata collinsi Baker
columbiensis, Planorbella columbiensis Baker, 1945
compar, Amerianna compar Iredale, 1943
complanatus, Hippeutis complanatus (Linnaeus, 1758)
complanatus, Gyraulus quadrangulus complanatus Jekelius (FOSSIL)
complanatus, Segmentina complanatus Poiret, 1801 - syn of: Segmentina nitida (Müller, 1774)
complanatus, Planorbis complanatus Stein, 1850 - syn of: Planorbis planorbis (Linnaeus, 1758)
compressiusculus, Ancylus compressiusculus Moquin-Tandon, 0 - syn of: Ancylus fluviatilis Müller, 1774
compressus, Gyraulus compressus (Hutton, 1849)
compressus, Planorbis compressus Michaud, 1831 - syn of: Anisus hypocyrtus Servain, 1888
compressus japonicus, Planorbis compressus japonicus Von Martens, 1867 - syn of: Anisus japonicus (Von Martens, 1867)
concatenatus, Taphius montanus concatenatus D'Orbigny
concavospira, Planorbis concavospira Anton, 1838 - syn of: Biomphalaria glabrata (Say, 1818)
concavus, Gyraulus concavus Mandahl-Barth, 1954
concentratus, Taphius montanus concentratus D'Orbigny
concentricus, Uncancylus concentricus (D'Orbigny, 1835)
concinna, Physastra concinna (Adams & Reeve, 1864)
concinnus, Anisus concinnus (Westerlund, 1881)
confusus, Planorbis confusus Lutz, 1918 - syn of: Biomphalaria glabrata (Say, 1818)
confusus, Anisus confusus Soós, 1934 † (FOSSIL)
connivens, Gyraulus connivens (Eichwald, 1830)
connollyi, Gyraulus connollyi Brown & Eeden, 1969
connollyi, Ferrissia connollyi Walker, 1912
connollyi exilis, Gyraulus connollyi exilis (Mandahl-Barth, 1954)
consetti, Stimulator consetti Iredale, 1944
constans, Gyraulus constans (Brusina, 1884)
contortus, Bathyomphalus contortus (Linnaeus, 1758)
contortus, Bathyomphalus contortus Lindholm, 1909 - syn of: Anisus crassus (Da Costa, 1778)
contortus, Bulinus contortus Michaud, 1829 - syn of: Bulinus truncatus (Audouin, 1827)
contortus labiatus, Planorbis contortus labiatus Westerlund, 1875 - syn of: Anisus agardhi Starobogatov, 2003
contortus spondyloides, Planorbis contortus spondyloides Weinland, 1883 - syn of: Anisus spondyloides (Weinland, 1883)
contractus, Gyraulus arminiensis contractus Jekelius (FOSSIL)
contrerasi, Pierosoma contrerasi (Pilsbry, 1920)
convexiusculus, Gyraulus convexiusculus (Hutton, 1849)
cooperi, Menetus cooperi Baker, 1945
cooperi crassilabris, Menetus cooperi crassilabris Baker, 1945
coranus, Gyraulus coranus Iredale, 1943
coretus, Africanogyrus coretus (Blainville, 1826)
corici, Bulinus corici Harzhauser & al., 2012 † (FOSSIL)
corinna, Gyraulus corinna (Gray, 1850)
corinna, Planorbis corinna Gray, 1850 - syn of: Gyraulus corinna (Gray, 1850)
coristomus, Gyraulus globosus coristomus Sauerzopf
corneus, Planorbarius corneus (Linnaeus, 1758)
corneus arabatzis, Planorbarius corneus arabatzis Reischütz, Reischütz & Fischer, 2008
corneus etruscus, Planorbarius corneus etruscus (Rossmässler, 1833)
corneus grandis, Planorbarius corneus grandis (Dunker, 1850)
corneus pinguis, Planorbis corneus pinguis Westerlund, 1885 - syn of: Planorbarius pinguis (Westerlund, 1885)
cornu, Planorbarius cornu (Brongniart, 1810) † (FOSSIL)
cornuarietis, Planorbarius cornuarietis Da Costa, 1778 - syn of: Planorbarius corneus (Linnaeus, 1758)
cornucopia, Planorbarius cornucopia (Baily, 1858) † (FOSSIL)
cornusolidus, Planorbis cornusolidus Thomä, 1845 † (FOSSIL)
corpulenta, Planorbella corpulenta (Say, 1824)
corpulenta vermillionense, Planorbella corpulenta vermillionense Baker, 1929
corpulenta whiteavesi, Planorbella corpulenta whiteavesi Baker, 1932
correctus, Anisus correctus (Westerlund, 1897)
cosmeta, Glyptophysa cosmeta Iredale, 1943
costaricense, Pierosoma costaricense (Preston, 1907)
costaricensis, Planorbis costaricensis Preston, 1907 - syn of: Pierosoma costaricense (Preston, 1907)
costata, Biomphalaria costata Biese, 1951
costatum, Ancylus costatum Férussac, 1822 - syn of: Ancylus fluviatilis Müller, 1774
costatus, Gyraulus costatus (Klein, 1846)
costulatum, Ancylus costulatum Küster, 1843 - syn of: Ancylus fluviatilis Müller, 1774
costulatus, Gyraulus costulatus (Krauss, 1848)
costulatus, Ancylus costulatus Bourguignat, 1853 - syn of: Ancylus fluviatilis Müller, 1774
costulatus, Planorbis costulatus Krauss, 1848 - syn of: Gyraulus costulatus (Krauss, 1848)
coulboisi, Bulinus truncatus coulboisi Bourguignat
coulboisi, Bulinus coulboisi Bourguignat, 1888 - syn of: Bulinus truncatus coulboisi Bourguignat, 1888
cousini, Biomphalaria cousini Paraense, 1966
crassilabris, Planorbula crassilabris (Walker)
crassilabris, Menetus cooperi crassilabris Baker
crassilabrum, Africanogyrus crassilabrum (Morelet, 1860)
crassistriata, Ancylastrum crassistriata Preston, 1911
crassus, Anisus crassus (Da Costa, 1778)
crassus, Planorbarius crassus (Serres, 1844) † (FOSSIL)
crassus, Gyraulus crassus Mandahl-Barth, 1954
crenellata, Ferrissia crenellata Harzhauser & al., 2012 † (FOSSIL)
crenophilus, Gyraulus crenophilus Hubendick & Radoman, 1959
crequii, Biomphalaria crequii (Courty, 1907)
crescens, Gyraulus crescens (Hilgendorf, 1867)
cretacea, Ancylina cretacea (Tausch, 1886) † (FOSSIL)
cretaceus, Ancylus cretaceus Tausch, 1886 † - syn of: Ancylina cretacea (Tausch, 1886) † (FOSSIL)
cretensis, Planorbis cretensis Glöer & Hirschfelder, 2015
crista, Gyraulus crista (Linnaeus, 1758)
crista spinulosus, Planorbis crista spinulosus Clessin, 1873 - syn of: Gyraulus crista (Linnaeus, 1758)
cristaeformis, Gyraulus cristaeformis (Gozhik & Prysjazhnjuk, 1978)
cristatus, Armiger cristatus Draparnaud, 1805 - syn of: Gyraulus crista (Linnaeus, 1758)
cristiani, Biomphalaria cristiani Fuentealba & Figueroa, 2012
crosseanus, Gyraulus crosseanus Bourguignat, 1862 - syn of: Gyraulus albus (Müller, 1774)
crosseanus, Planorbis crosseanus Bourguignat, 1862 - syn of: Gyraulus albus (Müller, 1774)
cryptomphalus, Choanomphalus cryptomphalus Dybowski, 1901
cryptornatus, Gyraulus cryptornatus (Sauerzopf, 1953)
crystallinus, Bulinus crystallinus Morelet, 1868
cultratum, Fossulorbis cultratum (D'Orbigny, 1841)
cultratum anitense, Fossulorbis cultratum anitense (Cooper, 1893)
cultratum duenasianum, Fossulorbis cultratum duenasianum (Tristram, 1861)
cultratum labrosum, Fossulorbis cultratum labrosum Pilsbry, 1934
cultratum panuco, Fossulorbis cultratum panuco Pilsbry, 1934
cumingi, Amerianna cumingi (Adams, 1861)
cumingianus, Ancylastrum cumingianus Bourguignat, 1854
cyaneus, Bulinus cyaneus Pirajno, 1842 - syn of: Bulinus truncatus (Audouin, 1827)
daganeanus, Ancylus daganeanus Petrbok, 1946 - syn of: Ancylus fluviatilis Müller, 1774
dalli, Vorticifex effusa dalli Baker
dalli, Planorbella campanulata dalli Baker
dalli, Ferrissia dalli Walker, 1920
dalmaticus, Gyraulus dalmaticus (Brusina, 1884) † (FOSSIL)
danae, Hebetancylus danae Joubin, 1931
dazuri, Anisus dazuri (Mörch, 1868)
dazuri nikolensis, Gyraulus dazuri nikolensis Dybowski, 1913 - syn of: Anisus nikolensis (Dybowski, 1913)
dealbatus, Gyraulus dealbatus (Braun, 1851) † (FOSSIL)
declivis, Planorbis declivis Braun, 1851 † - syn of: Gyraulus applanatus (Thomä, 1845) † (FOSSIL)
declivis balizacensis, Gyraulus declivis balizacensis Peyrot, 1932 † - syn of: Anisus balizacensis (Peyrot, 1932) † (FOSSIL)
declivus, Planorbis declivus Tate, 1870 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
decorus, Gyraulus decorus (Roshka, 1973)
decussatus, Ancylus decussatus Reuss, 1849 † - syn of: Acroloxus decussatus (Reuss, 1849) † (FOSSIL)
deflectus, Gyraulus deflectus (Say, 1824)
deflexus, Gyraulus deflexus (Sandberger, 1859)
deformis, Planorbis deformis Hartmann, 1844 - syn of: Gyraulus acronicus (Férussac, 1807)
deletron, Hebetancylus deletron Young, 1972
demissus, Gyraulus demissus (Westerlund, 1885)
densecostatus, Anisus densecostatus Schütt, 1994 † (FOSSIL)
dentatus, Planorbis dentatus Gould, 1844 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
dentiens, Planorbis dentiens Morelet, 1849 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
dentiens edentula, Planorbula dentiens edentula Fischer & Crosse, 1880 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
dentifer, Planorbis dentifer Moricand, 1853 - syn of: Biomphalaria glabrata (Say, 1818)
dentiferus, Planorbis dentiferus Adams, 1845 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
dentiferus edentatus, Planorbis dentiferus edentatus Adams, 1845 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
denudatus, Gyraulus denudatus (Hilgendorf, 1867)
depauperatus, Ancylus depauperatus Wollaston, 1878 - syn of: Ancylus aduncus Gould, 1847
deperdita, Ferrissia deperdita (Desmarest, 1814) † (FOSSIL)
deperdita oblonga, Ferrissia deperdita oblonga (Clessin, 1912) † (FOSSIL)
deperditum, Ancylus deperditum Dupuy, 1850 - syn of: Ancylus fluviatilis Müller, 1774
depressissimum, Drepanotrema depressissimum (Moricand, 1837)
depressissimum, Fossulorbis depressissimum (Moricand, 1837) - syn of: Drepanotrema depressissimum (Moricand, 1837)
depressissimun, Drepanotrema depressissimun (Moricand, 1839)
depressissimus, Anisus depressissimus (Sacco, 1886) † (FOSSIL)
depressiuscula, Bulinus umbilicatus depressiuscula Mandahl-Barth
depressus, Ancylus depressus Deshayes, 1824 † (FOSSIL)
depressus, Bulinus depressus Haas, 1936
depressus, Ancylus depressus Haldeman, 1844 - syn of: Ferrissia rivularis (Say, 1817)
depressus, Gyraulus arminiensis depressus Jekelius (FOSSIL)
devians, Armiger devians Porro, 1838 - syn of: Gyraulus crista (Linnaeus, 1758)
devians euphratica, Planorbis devians euphratica Mousson, 1874 - syn of: Gyraulus acronicus (Férussac, 1807)
diaphanella, Hippeutis diaphanella (Bourguignat, 1864)
diaphanus, Laevapex diaphanus (Haldeman, 1841)
dicipiens, Planorbis dicipiens Adams, 1849 - syn of: Biomphalaria havanensis (Pfeiffer, 1839)
dickinianum, Ancylus dickinianum Benoit, 1882 - syn of: Ancylus fluviatilis Müller, 1774
didieri, Physopsis didieri Rochebrune & Germain, 1904
dilatatus, Micromenetus dilatatus (Gould, 1841)
dilatatus avus, Micromenetus dilatatus avus (Pilsbry, 1905)
dildorae, Kolhymorbis dildorae Izzatullaev, 1980
dimici, Ferrissia dimici (Brusina, 1902) † (FOSSIL)
dimitrovici, Gyraulus dimitrovici (Brusina, 1902)
discoides, Anisus discoides (Reinhardt, 1870)
discoideus, Gyraulus discoideus Pavlovic, 1903 - syn of: Gyraulus rasseri Neubauer & al., 2014
dispar, Anisus dispar (Westerlund, 1871)
distinguenda, Segmentina distinguenda (Gredler, 1859)
distortus, Gyraulus distortus (Hyatt, 1880)
djurjurensis, Ancylus djurjurensis Debeaux, 1863 - syn of: Ancylus fluviatilis Müller, 1774
dohrnianus, Ferrissia dohrnianus (Clessin, 1882)
dolichomastix, Plesiophysa dolichomastix Paraense, 2002
donbilli, Segmentina donbilli Tristram, 1861 - syn of: Biomphalaria obstructa (Morelet, 1849)
doricus, Gyraulus doricus (Bukowski, 1896)
doseni, Gyraulus doseni (Brusina, 1902)
draparnaudi, Gyraulus draparnaudi (Sheppard, 1823)
drenici, Segmentina drenici Miloševic, 1975 † (FOSSIL)
drouetianus, Ancylus drouetianus Bourguignat, 1864 - syn of: Ancylus fluviatilis Müller, 1774
dubius, Gyraulus dubius Gorjanovic-Kramberger, 1890 - syn of: Gyraulus vrapceanus Neubauer & al., 2014
dubius, Planorbis dubius Hartmann, 1821
duenasensis, Planorbis duenasensis Tristram, 1861 - syn of: Fossulorbis cultratum duenasianum (Tristram, 1861)
duenasianum, Fossulorbis cultratum duenasianum Tristram
dufourii, Planorbarius dufourii (Graells, 1846)
dupuyianus, Anisus dupuyianus (Noulet, 1854) † (FOSSIL)
duryi, Helisoma duryi (Wetherby, 1879)
duryi, Seminolina duryi Wetherby, 1879 - syn of: Helisoma duryi (Wetherby, 1879)
duryi eudiscus, Helisoma duryi eudiscus Pilsbry, 1934 - syn of: Seminolina eudiscus (Pilsbry, 1934)
dutrae, Anisancylus dutrae (Santos, 1994)
dybowskianus, Achoanomphalus dybowskianus Lindholm, 1909 - syn of: Choanomphalus anomphalus Dybowski, 1901
dybowskianus parvus, Choanomphalus dybowskianus parvus Kozhov, 1936 - syn of: Choanomphalus parvus (Kozhov, 1936)
dybowskii laricensis, Ancylus dybowskii laricensis Dybowski, 1913 - syn of: Baicalancylus laricensis (Dybowski, 1913)
eburnensis, Ferrissia eburnensis Binder, 1957
edgbastonensis, Gyraulus edgbastonensis Brown, 2001
edlaueri, Gyraulus edlaueri (Sauerzopf, 1953)
edwardiana, Ancylastrum edwardiana Pilsbry & Beecher, 1927
effusa, Vorticifex effusa (Lea, 1856)
effusa, Parapholyx effusa Lea, 1856 - syn of: Vorticifex effusa (Lea, 1856)
effusa dalli, Vorticifex effusa dalli Baker, 1945
effusa klamathensis, Vorticifex effusa klamathensis Baker, 1945
effusa neritoides, Vorticifex effusa neritoides Baker, 1945
effusa sinitsini, Vorticifex effusa sinitsini Baker, 1945
egirdirensis, Gyraulus egirdirensis Glöer & Girod, 2013
egregia, Glyptophysa egregia Preston, 1906
ehrenbergi, Gyraulus ehrenbergi (Beck, 1837)
eichwaldi, Anisus eichwaldi (Grimm, 1888)
eichwaldi dybowski, Planorbis eichwaldi dybowski Kolesnikov, 1947 - syn of: Anisus kolesnikovi Logvinenko & Starobogatov, 1966
elatior, Rhodacmea elatior (Anthony, 1855)
elatior, Choanomphalus maacki elatior Lindholm
elatospiralis, Choanomphalus elatospiralis Dybowski & Grochmalicki, 1925 - syn of: Choanomphalus maacki andrussowianus (Lindholm, 1909)
elenae, Gyraulus elenae Vinarski, Glöer & Palatov, 2013
ellipticus, Ancylus ellipticus Clessin, 1881 - syn of: Ancylus fluviatilis Müller, 1774
epipedus, Ancylus epipedus Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
equatorium, Helisoma equatorium Coussin, 1816 - syn of: Planorbella trivolvis (Say, 1817)
equeefensis, Ferrissia equeefensis Walker, 1924
esperanzensis, Planorbis esperanzensis Tryon, 1866 - syn of: Drepanotrema anatinum (D'Orbigny, 1835)
essingtonensis, Gyraulus essingtonensis (Smith, 1882)
essingtonensis, Planorbis essingtonensis Smith, 1882 - syn of: Gyraulus essingtonensis (Smith, 1882)
etruscus, Planorbarius etruscus Bourguignat, 1855 - syn of: Planorbarius corneus (Linnaeus, 1758)
etruscus, Planorbarius corneus etruscus Rossmässler
eucosmium, Helisoma eucosmium (Bartsch, 1908)
eudiscus, Seminolina eudiscus (Pilsbry, 1934)
eugyne, Gyraulus eugyne Meier-Brook, 1983
euomphalus, Planorbarius euomphalus Sowerby, 1816 † (FOSSIL)
euphaeus, Hippeutis euphaeus Bourguignat, 1864 - syn of: Hippeutis complanatus (Linnaeus, 1758)
euphraticus, Gyraulus euphraticus (Mousson, 1874)
eurasiaticus, Gyraulus eurasiaticus Prozorova & Starobogatov, 1996
europaea, Aenigmomphisicola europaea Kruglov & Starobogatov, 1981
eurystomus, Choanomphalus eurystomus Lindholm, 1909
eussoensis, Segmentorbis eussoensis (Preston, 1912)
exacuous, Promenetus exacuous (Say, 1821)
exacuous megas, Promenetus exacuous megas (Dall, 1905)
exaggeratum, Pierosoma tenuis exaggeratum Von Martens
excavatus, Segmentorbis excavatus Mandahl-Barth, 1968
excentricus, Hebetancylus excentricus (Morelet, 1851)
excentricus biolleyi, Ancylus excentricus biolleyi Von Martens, 1899 - syn of: Hebetancylus excentricus (Morelet, 1851)
excentricus pittieri, Ancylus excentricus pittieri Von Martens, 1899 - syn of: Hebetancylus excentricus (Morelet, 1851)
excuous, Menetus excuous Say
exilis, Gyraulus connollyi exilis Mandahl-Barth
expansilabris, Ancylus expansilabris Clessin, 1882
exustus, Indoplanorbis exustus (Deshayes, 1834)
faini, Gyraulus faini Adam, 1957
falsani, Anisus falsani (Locard, 1883) † (FOSSIL)
farquhari, Ferrissia farquhari Walker, 1924
fasciatus, Hippeutis fasciatus Gottschick, 1920 † (FOSSIL)
ferrugineus, Planorbis ferrugineus Spix, 1827 - syn of: Biomphalaria glabrata (Say, 1818)
feruginosus, Antillorbis feruginosus Morelet, 1851 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
fieldi, Biomphalaria fieldi (Tryon, 1863)
filocincta, Segmentina filocincta (Sandberger, 1875) † (FOSSIL)
filocinctus, Planorbis filocinctus Pilsbry & Ferriss, 1906 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
filosa, Rhodacmea filosa (Conrad, 1834)
fischeri, Planorbis fischeri Wenz, 1919 † (FOSSIL)
floridensis, Menetus floridensis Baker, 1945
fluviatilis, Ancylus fluviatilis Müller, 1774
fluviatilis armenia, Ancylus fluviatilis armenia Böttger, 1881 - syn of: Ancylus armenia Böttger, 1881
fluviatilis capuliformis, Ancylus fluviatilis capuliformis Moquin-Tandon, 1855 - syn of: Ancylus fluviatilis Müller, 1774
fonckii, Ancylus fonckii Philippi, 1866
fontanus, Hippeutis fontanus Lightfoot, 1786 - syn of: Hippeutis complanatus (Linnaeus, 1758)
fontinalis, Gyraulus fontinalis Hubendick & Radoman, 1959
fontinalis, Ferrissia fontinalis Walker, 1912
formosus, Gyraulus formosus (Brusina, 1902)
forskalii, Pyrgophysa forskalii (Ehrenberg, 1831)
foveale, Helisoma foveale (Menke, 1830)
foveale guatemalense, Helisoma foveale guatemalense (Clessin, 1889)
fragilis, Gyraulus fragilis (Pavlovic, 1903)
fragilis, Ferrissia fragilis (Tryon, 1863)
fragilis, Hippeutis fragilis Mousson, 1855 - syn of: Hippeutis complanatus (Linnaeus, 1758)
fragilis, Planorbis fragilis Tate, 1896 - syn of: Gyraulus essingtonensis (Smith, 1882)
fuchsi, Gyraulus fuchsi (Lörenthey, 1902)
fuchsi asymmetricus, Gyraulus fuchsi asymmetricus (Sauerzopf, 1953)
fulminatus, Burnupia fulminatus (Menke, 1828)
fuscus, Laevapex fuscus (Adams, 1840)
fuscus, Planorbis fuscus Dunker, 1848 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
fuscusndi, Laevapex fuscusndi (Adams, 1841)
garsdorfensis, Planorbarius garsdorfensis Schlickum & Strauch, 1979 † (FOSSIL)
gayanus, Ancylus gayanus D'Orbigny, 1837
geminus, Gyraulus geminus (Brusina, 1897) † (FOSSIL)
geniculatus, Gyraulus geniculatus (Sandberger, 1875)
gentilis, Ferrissia gentilis Lanzer, 1991
georgiana, Glyptophysa georgiana (Quoy & Gaimard, 1832)
gerstfeldtianus, Choanomphalus gerstfeldtianus Lindholm, 1909
gerstfeldtianus striatus, Choanomphalus gerstfeldtianus striatus Kozhov, 1936 - syn of: Choanomphalus gerstfeldtianus Lindholm, 1909
gibbonsi, Ceratophallus gibbonsi (Nelson, 1878)
gibbosa, Glyptophysa gibbosa (Gould, 1846)
gibbosum, Ancylus gibbosum Bourguignat, 1852 - syn of: Ancylus fluviatilis Müller, 1774
gilberti, Gyraulus gilberti (Dunker, 1848)
glaber, Gyraulus glaber Jeffreys, 1830 - syn of: Gyraulus laevis (Alder, 1838)
glabrata, Biomphalaria glabrata (Say, 1818)
glabrata bahiensis, Biomphalaria glabrata bahiensis (Dunker, 1886)
gladilini, Planorbis gladilini Pavlovic, 1931 † (FOSSIL)
globosus, Gyraulus globosus (Sauerzopf, 1953)
globosus, Bulinus globosus Morelet, 1866
globosus coristomus, Gyraulus globosus coristomus (Sauerzopf, 1953)
goetzendorfensis, Gyraulus goetzendorfensis (Sauerzopf, 1953)
gordonensis, Ancylastrum gordonensis Melvill & Ponsonby, 1903
goussardianus, Gyraulus goussardianus (Noulet, 1854)
grachevi, Choanomphalus grachevi Sitnikova & Röpstorf, 1999
gracilenta, Biomphalaria gracilenta (Gould, 1855)
gracilis, Gyraulus gracilis (Gozhik & Prysjazhnjuk, 1978)
graecus, Planorbis graecus Clessin, 1878 - syn of: Planorbis planorbis (Linnaeus, 1758)
grandis, Planorbarius corneus grandis Dunker
grangei, Biomphalaria grangei Courty, 1907 - syn of: Biomphalaria crequii (Courty, 1907)
granulata, Plesiophysa granulata (Shuttleworth, 1873)
gredleri, Planorbarius gredleri Clessin, 1887 - syn of: Planorbarius corneus (Linnaeus, 1758)
gredleri, Gyraulus gredleri Gredler, 1859 - syn of: Gyraulus acronicus (Férussac, 1807)
gredleri, Planorbis gredleri Gredler, 1859 - syn of: Gyraulus acronicus (Férussac, 1807)
gredleri borealis, Gyraulus gredleri borealis Lovén, 1875 - syn of: Anisus borealis (Lovén, 1875)
guadaloupensis, Planorbis guadaloupensis Sowerby, 1822 - syn of: Biomphalaria glabrata (Say, 1818)
guadeloupensis, Plesiophysa guadeloupensis (Fischer, 1883)
guaibensis, Biomphalaria tenagophila guaibensis Paraense
guatemalenis, Planorbis guatemalenis Clessin, 1889 - syn of: Helisoma foveale guatemalense (Clessin, 1889)
guatemalense, Helisoma foveale guatemalense Clessin
guerichi, Anisus guerichi (Andreae, 1902) † (FOSSIL)
guernei, Bulinus guernei Dautzenberg, 1890
gussonii, Ancylus gussonii Costa, 1829 - syn of: Williamia gussoni (Costa, 1829)
hainesii, Isidorella hainesii (Tryon, 1866)
halavatsi, Planorbarius halavatsi Neubauer, Harzhauser, Kroh, Georgopoulou & Mandic † (FOSSIL)
haldemani, Planorbis haldemani Adams, 1849 - syn of: Drepanotrema anatinum (D'Orbigny, 1835)
haldemani, Ancylus haldemani Böttger, 1853 - syn of: Ferrissia rivularis (Say, 1817)
haueri, Segmentina haueri Stoliczka, 1862 † (FOSSIL)
havanensis, Biomphalaria havanensis (Pfeiffer, 1839)
havanensis, Ancylus havanensis Pfeiffer, 1839 - syn of: Gundlachia radiata (Guilding, 1828)
hebraicus, Gyraulus hebraicus (Bourguignat, 1852)
helicophantoides, Gyraulus helicophantoides (Pavlovic, 1927)
heloicum, Drepanotrema heloicum (D'Orbigny, 1835)
helophila, Biomphalaria helophila (D'Orbigny, 1835)
helophilus, Planorbarius helophilus Bourguignat, 1859 - syn of: Planorbarius corneus (Linnaeus, 1758)
hemisphaerula, Segmentina hemisphaerula Benson, 1842
hendersoni, Ferrissia hendersoni Walker, 1908
heriacensis, Planorbarius heriacensis (Fontannes, 1876) † (FOSSIL)
hesperus, Gyraulus hesperus Iredale, 1943
heteropleurus, Taphius montanus heteropleurus Pilsbry & Vanatta
heteropleurus, Planorbis heteropleurus Pilsbry & Vannata, 1896 - syn of: Biomphalaria andecola (D'Orbigny, 1835)
heudei, Gyraulus heudei (Clessin, 1886)
hexaploidus, Bulinus hexaploidus Burch, 1972
hians, Gyraulus hians (Rolle, 1860)
hiemantium, Gyraulus hiemantium Westerlund
hightoni, Bulinus hightoni Brown & Wright, 1978
hilgendorfi, Anisus hilgendorfi (Fraas, 1868)
hilgendorfi subcarinatus, Anisus hilgendorfi subcarinatus (Gottschick, 1920) † (FOSSIL)
hinkleyi, Rhodacmea hinkleyi (Walker, 1908)
hinkleyi, Gundlachia hinkleyi Walker, 1917
hirasei, Camptoceras terebra hirasei Walker
hirsutus, Gyraulus hirsutus (Gould, 1840)
hispanicus, Ancylus hispanicus Gönä, 0 - syn of: Ancylus fluviatilis Müller, 1774
hispidulus, Gyraulus hispidulus Draparnaud, 1805 - syn of: Gyraulus albus (Müller, 1774)
hispidus, Gyraulus hispidus Draparnaud, 1805 - syn of: Gyraulus albus (Müller, 1774)
hispidus, Planorbis hispidus Draparnaud, 1805 - syn of: Gyraulus albus (Müller, 1774)
hjalmarsoni, Gundlachia hjalmarsoni Pfeiffer, 1858
hoernesi, Gyraulus hoernesi (Rolle, 1860)
hoffmani, Drepanotrema hoffmani Baker, 1941
homalosomus, Gyraulus homalosomus (Brusina, 1902)
homalosomus rhytidophorus, Gyraulus homalosomus rhytidophorus Brusina, 1902 - syn of: Gyraulus rhytidophorus (Brusina, 1902)
homsensis, Gyraulus homsensis (Dautzenberg, 1894)
hondurasensis, Biomphalaria hondurasensis (Clessin, 1878)
horasanensis, Gyraulus horasanensis Schütt, 1991 † (FOSSIL)
hornensis, Gyraulus hornensis Baker, 1934
hornii, Planorbella hornii (Tryon, 1865)
hubendicki, Gyraulus hubendicki Brandt, 1974
hungaricus, Ancylus hungaricus Brusina, 1902 † (FOSSIL)
huonensis, Glyptophysa huonensis Tenison-Woods, 1876
huwaizahensis, Gyraulus huwaizahensis Glöer & Naser, 2005
huzhirensis, Choanomphalus huzhirensis Beckmann & Starobogatov, 1975
hyaliniiformis, Choanomphalus hyaliniiformis Moskvicheva, 1980
hypocyrtus, Anisus hypocyrtus Servain, 1888
idahoense, Helisoma anceps idahoense Baker
ignoratus, Gyraulus ignoratus Schlickum & Puisségur, 1977 † (FOSSIL)
ignotellus, Anisus ignotellus (Dybowski, 1913)
illibatus, Gyraulus illibatus Westerlund, 1883
illyrica, Ferrissia illyrica (Neumayr, 1880) † (FOSSIL)
imbricatus, Armiger imbricatus Müller, 1774 - syn of: Gyraulus crista (Linnaeus, 1758)
imbricatus, Planorbis imbricatus Müller, 1774 - syn of: Gyraulus crista (Linnaeus, 1758)
immunis, Planorbis immunis Lutz, 1923 - syn of: Biomphalaria glabrata (Say, 1818)
incertus, Choanomphalus incertus Lindholm, 1909
incertus mesospiralis, Choanomphalus incertus mesospiralis Dybowski & Grochmalicki, 1925 - syn of: Choanomphalus maacki (Gerstfeldt, 1859)
incrassatus, Planorbarius incrassatus (Rambur, 1862) † (FOSSIL)
indica, Hebetancylus indica Naef, 1923
infirmus, Gyraulus infirmus (Mori, 1938)
inflexus, Australorbis inflexus Paraense & Deslandes, 1956 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
infracarinatum, Planorbella pilsbryi infracarinatum Baker
infraliratus, Anisus infraliratus (Westerlund, 1876)
ingae, Burnupia ingae Lanzer, 1991
inniae, Segmentina inniae Kruglov & Soldatenko, 1997
inornatus, Gyraulus inornatus (Brusina, 1902)
intermedia, Biomphalaria intermedia (Paraense & Deslandes, 1962)
intermedius, Choanomphalus intermedius Dybowski, 1901 - syn of: Choanomphalus valvatoides Dybowski, 1875
intermixtus, Planorbis intermixtus Mousson, 1874
intertextum, Planorbella trivolvis intertextum Sowerby
ioanis, Gyraulus ioanis Glöer & Pešic, 2007
irrorata, Ferrissia irrorata (Guilding, 1828)
irvinae, Ancylastrum irvinae Petterd, 1888
isingi, Gyraulus isingi Cotton & Godfrey, 1932
isseli, Ferrissia isseli (Bourguignat, 1866)
isseli, Planorbarius isseli (Sacco, 1886) † (FOSSIL)
issykulensis, Anisus issykulensis (Clessin, 1907)
isthmicus, Planorbis isthmicus Pilsbry, 1920 - syn of: Biomphalaria kuhniana (Clessin, 1883)
iturupensis, Anisus iturupensis Prozorova & Starobogatov, 1997
iwaotakii, Gyraulus iwaotakii Mori, 1938
jacksonensis, Helisoma newberryi jacksonensis Henderson
jacobeanus valenciannes, Planorbis jacobeanus valenciannes Hupé, 1854 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
jagellonensis, Armiger jagellonensis Dybowski & Grochmalicki, 1922 - syn of: Gyraulus crista (Linnaeus, 1758)
jani, Ancylus jani Pini, 1876 - syn of: Ancylus fluviatilis Müller, 1774
jani major, Ancylus jani major Issel, 1865 - syn of: Ancylus major Issel, 1865
janinensis, Ancylus janinensis Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
janinensis, Hippeutis janinensis Mousson, 1859 - syn of: Hippeutis complanatus (Linnaeus, 1758)
jankovskajae, Gyraulus jankovskajae Izzatullaev, 1984
japonica, Laevapex japonica Habe & Burch, 1965
japonicus, Anisus japonicus (Von Martens, 1867)
japonicus, Choanomphalus japonicus Preston, 1916 - syn of: Gyraulus biwaensis (Preston, 1916)
japonicus perstriatulus, Choanomphalus japonicus perstriatulus Preston, 1916 - syn of: Gyraulus biwaensis (Preston, 1916)
jaroslavi, Steklovidiscus jaroslavi (Gozhik & Prysjazhnjuk, 1978) † (FOSSIL)
jenksii, Planorbula jenksii Carpenter
jiraponi, Camptoceras jiraponi Hubendick, 1967
johanseni, Anisus johanseni (Mozley, 1934)
johni, Plesiophysa johni Burch, 1977
joseana, Laevapex joseana (Morrison, 1946)
jousseaumei, Bulinus jousseaumei Dautzenberg, 1890
jukesii, Glyptophysa jukesii (Adams, 1861)
jukici, Gyraulus jukici (Brusina, 1902)
junodi, Lentorbis junodi (Connolly, 1922)
junodi, Ferrissia junodi Connolly, 1925
jurkovici, Gyraulus jurkovici (Brusina, 1902)
kahuica, Gyraulus kahuica (Finlay & Laws, 1931)
kahuica, Planorbis kahuica Finlay & Laws, 1931 - syn of: Gyraulus kahuica (Finlay & Laws, 1931)
kamtschaticus, Anisus kamtschaticus (Westerlund, 1876)
kanisaensis, Segmentorbis kanisaensis (Preston, 1914)
kansasensis, Pecosorbis kansasensis (Berry, 1966)
katurici, Gyraulus katurici (Brusina, 1897)
kavirondica, Ferrissia kavirondica Mandahl-Barth, 1954
kempi, Ancylastrum kempi Preston, 1912
kennicotti, Helisoma kennicotti Baker, 1945
kermatoides, Fossulorbis kermatoides (D'Orbigny, 1835)
kershawi, Glyptophysa kershawi Tenison-Woods, 1878
khabarovskiensis, Anisus khabarovskiensis Prozorova & Starobogatov, 1997
khoresmicus, Gyraulus khoresmicus Prozorova & Starobogatov, 1996
kigeziensis, Gyraulus kigeziensis Preston, 1912
kimiloloensis, Ancylastrum kimiloloensis Pilsbry & Beecher, 1914
kirklandi, Ferrissia kirklandi Walker, 1903
kisumiensis, Gyraulus kisumiensis Preston, 1912
kittli, Mioplatytaphius kittli (Rzehak, 1893) † (FOSSIL)
klamathensis, Vorticifex effusa klamathensis Baker
klamathensis sinitsini, Parapholyx klamathensis sinitsini Baker, 1945 - syn of: Vorticifex effusa sinitsini Baker, 1945
kleini, Gyraulus kleini (Gottschick & Wenz, 1916) † (FOSSIL)
kochi, Planorbis kochi Pavlovic, 1927 † (FOSSIL)
kolesnikovi, Anisus kolesnikovi Logvinenko & Starobogatov, 1966
komarovae, Anisus komarovae Prysjazhnjuk, 1974 † (FOSSIL)
kormosi, Bulinus kormosi Soós, 1934 † (FOSSIL)
korotnevi, Choanomphalus korotnevi Lindholm, 1909
korotnevi elatior, Choanomphalus korotnevi elatior Lindholm, 1909 - syn of: Choanomphalus maacki elatior Lindholm, 1909
kosiensis, Gyraulus kosiensis Glöer & Bössneck, 2013
kosovensis, Gyraulus kosovensis (Pavlovic, 1903)
kozhovi, Choanomphalus kozhovi Beckmann & Starobogatov, 1975
kozhovi, Helicorbis kozhovi Starobogatov & Streletzkaja, 1967
krambergeri, Anisus krambergeri (Halaváts, 1903) † (FOSSIL)
kraussii, Gyraulus kraussii Klein, 1846 - syn of: Gyraulus steinheimensis (Hilgendorf, 1867)
krohi, Gyraulus krohi Neubauer & Harzhauser, 2014
kruglowiae, Anisus kruglowiae (Johansen, 1937)
kubanicus, Planorbis kubanicus Soldatenko & Starobogatov, 1998
kuhnerianus, Planorbis kuhnerianus Clessin, 1883 - syn of: Biomphalaria kuhniana (Clessin, 1883)
kuhniama, Biomphalaria kuhniama (Clessin, 1883)
kuhniana, Biomphalaria kuhniana (Clessin, 1883)
kunhnianus, Planorbis kunhnianus Dunker, 1848 - syn of: Biomphalaria straminea (Dunker, 1848)
kushanica, Helicorbis kushanica Izzatullaev, 1980
kussakini, Anisus kussakini Prozorova & Starobogatov, 1997
labiatus, Menetus labiatus Baker, 1945
labiatus, Gyraulus labiatus Benson, 1850
labrosum, Fossulorbis cultratum labrosum Pilsbry
lacustris, Segmentina lacustris Lightfoot, 1768 - syn of: Segmentina nitida (Müller, 1774)
lacustris, Ferrissia lacustris Walker, 1924
ladacensis, Gyraulus ladacensis (Nevill, 1878)
laevis, Gyraulus laevis (Alder, 1838)
laevis infirmus, Gyraulus laevis infirmus Mori, 1938 - syn of: Gyraulus infirmus (Mori, 1938)
laevis ladacensis, Gyraulus laevis ladacensis Nevill, 1878 - syn of: Gyraulus ladacensis (Nevill, 1878)
lagunarum, Gundlachia lagunarum (Hass, 1955)
lamellosa, Bulinus lamellosa Roth, 1855 - syn of: Pyrgophysa forskalii (Ehrenberg, 1831)
lapicidus, Ancylus lapicidus Hubendick, 1960
lartetii, Segmentina lartetii (Noulet, 1854) † (FOSSIL)
laskarevi, Anisus laskarevi Miloševic, 1976 † (FOSSIL)
latior, Hippeutis subfontanus latior Gottschick (FOSSIL)
latissimus, Hebetancylus latissimus (Lewis, 1875)
lauricocheae, Biomphalaria lauricocheae (Philippi, 1869)
layardi, Physastra layardi (Ancey)
lazici, Gyraulus lazici (Brusina, 1892)
lenapalus, Gyraulus lenapalus (Bourguignat, 1881)
lendli, Gyraulus lendli (Brusina, 1902)
lenticularis, Hippeutis lenticularis Allen, 1812 - syn of: Hippeutis complanatus (Linnaeus, 1758)
lentum, Planorbella trivolvis lentum Say
lenzi, Gyraulus lenzi Van Benthem-Jutting, 1943 - syn of: Drepanotrema anatinum (D'Orbigny, 1835)
leonatus, Planorbis leonatus Iredale, 1943
leonensis, Ferrissia leonensis Connolly, 1928
leroyi, Physopsis leroyi Grandidier, 1887
lesueurii, Hebetancylus lesueurii (D'Orbigny, 1842)
letteroni, Ancylus letteroni Caziot, 1902 - syn of: Ancylus fluviatilis Müller, 1774
leucaspis, Gundlachia leucaspis (Ancey, 1901)
leucostoma, Anisus leucostoma (Millet, 1813)
leucostoma nikolensis, Anisus leucostoma nikolensis Kozhov, 1936 - syn of: Anisus leucostoma (Millet, 1813)
levanidovae, Helicorbis levanidovae Zatrawkin & Moskvicheva, 1985
levistratum, Planorbis levistratum Preston, 1912 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
lhotelleriei, Ferrissia lhotelleriei Walker, 1914
libanicus, Ancylus libanicus Nägele, 1897 - syn of: Ancylus fluviatilis Müller, 1774
liebmanni, Planorbis liebmanni Philippi, 1850 - syn of: Biomphalaria havanensis (Pfeiffer, 1839)
likharevi, Polypylis likharevi Starobogatov & Streletzkaja, 1967
limayanum, Drepanotrema limayanum (Lesson, 1830)
limophilus, Planorbis limophilus Clessin, 1884 - syn of: Gyraulus draparnaudi (Sheppard, 1823)
lindae, Seminolina lindae Petuch, 1991 † (FOSSIL)
lindholmi, Choanomphalus lindholmi Beckmann & Starobogatov, 1975
lindholmi, Camptoceras lindholmi Starobogatov & Prozorova, 1990
lineata, Segmentina lineata Fleming, 1828 - syn of: Segmentina nitida (Müller, 1774)
lineatum, Camptoceras lineatum Blanford, 1871
lineatus sonorensis, Planorbis lineatus sonorensis Cooper, 1893 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
lineolatus, Gyraulus lineolatus (Brusina, 1878)
lirata, Isidora lirata Tenison-Woods, 1879 - syn of: Glyptophysa variabilis (Gray, 1843)
lirata conferta, Isidora lirata conferta Suter, 1905 - syn of: Glyptophysa variabilis (Gray, 1843)
liratus, Bulinus liratus Tristram, 1863
lluecai, Gyraulus lluecai (Royo Gómez, 1922)
loczyi, Segmentina loczyi (Lörenthey, 1906) † (FOSSIL)
loczyi anterior, Segmentina loczyi anterior (Sauerzopf, 1953) † (FOSSIL)
longiptera, Hebetancylus longiptera Akimushkin, 1963
lorentheyi, Gyraulus lorentheyi (Brusina, 1902)
lucasi, Gundlachia lucasi Suter, 1905
lucidum, Drepanotrema lucidum (Pfeiffer, 1839)
ludovici, Gyraulus ludovici (Noulet, 1854)
ludoviciana, Pyrgophysa ludoviciana (Mittre, 1841)
lugubris, Planorbis lugubris Wagner, 1827 - syn of: Biomphalaria glabrata (Say, 1818)
luguhuensis, Gyraulus luguhuensis Shu, Köhler, Fu & Wang, 2013
lundii, Planorbis lundii Beck, 1838 - syn of: Biomphalaria glabrata (Say, 1818)
lutzi, Gundlachia lutzi Walker, 1925
lychnidicus, Gyraulus lychnidicus Hesse, 1928
maacki, Choanomphalus maacki (Gerstfeldt, 1859)
maacki, Kolhymorbis maacki Starobogatov & Streletzkaja, 1967 - syn of: Kolhymorbis angarensis (Dybowski & Grochmalicki, 1925)
maacki andrussowianus, Choanomphalus maacki andrussowianus (Lindholm, 1909)
maacki elatior, Choanomphalus maacki elatior Lindholm, 1909
macedonicus, Planorbis macedonicus Sturany, 1894
macnabianus, Planorbis macnabianus Adams, 1849 - syn of: Drepanotrema cimex (Moricand, 1839)
macquariensis, Gyraulus macquariensis Smith, 1882
magnifica, Planorbella magnifica Pilsbry, 1903
major, Ancylus major Issel, 1865
malkae, Segmentina malkae Kruglov & Soldatenko, 1997
mamillata, Physastra mamillata (Sowerby, 1874)
mantelli, Planorbarius mantelli (Dunker, 1848) † (FOSSIL)
mareoticus, Planorbis mareoticus Innes, 1884 - syn of: Gyraulus ehrenbergi (Beck, 1837)
marginatus, Planorbis marginatus Draparnaud, 1805 - syn of: Planorbis planorbis (Linnaeus, 1758)
marginatus dubius, Planorbis marginatus dubius Hartmann, 1821 - syn of: Planorbis dubius Hartmann, 1821
margoi, Planorbarius margoi (Lörenthey, 1894) † (FOSSIL)
mariae, Anisus mariae (Michaud, 1862) † (FOSSIL)
marinkovici, Gyraulus marinkovici (Brusina, 1892)
maritzanus, Planorbarius maritzanus Drenski, 1947 - syn of: Planorbarius corneus (Linnaeus, 1758)
marshalli, Helisoma marshalli Baker, 1945
matheroni, Anisus matheroni (Fischer & Tournouër, 1873)
matraensis, Gyraulus matraensis Gál & al., 1999
mauritianus, Gyraulus mauritianus Morelet, 1876
maya, Planorbis maya Morelet, 1849 - syn of: Biomphalaria havanensis (Pfeiffer, 1839)
mcneili, Ferrissia mcneili Walker, 1925
meditjensis, Planorbarius meditjensis Forbes, 1839 - syn of: Planorbarius dufourii (Graells, 1846)
meehiana, Gundlachia meehiana Stimpson, 1863
meekiana, Gundlachia meekiana Stimpson, 1863 - syn of: Gundlachia meehiana Stimpson, 1863
megaptera, Hebetancylus megaptera (Verrill, 1885)
megas, Promenetus exacuous megas Dall
meierbrooki, Gyraulus meierbrooki Glöer & Pešic, 2007
melleum, Drepanotrema melleum Lutz, 1918 - syn of: Drepanotrema lucidum (Pfeiffer, 1839)
mendipensis, Planorbis mendipensis Moore † (FOSSIL)
meneghinianus, Bulinus meneghinianus Paulucci, 1882 - syn of: Bulinus truncatus (Audouin, 1827)
meneliki, Physopsis meneliki Bourguignat, 1885
meniscoides, Hippeutis meniscoides Tate, 1882
meridianus, Choanomphalus bathybius meridianus Beckmann & Starobogatov
meridionale, Ancylus meridionale Bourguignat, 1852 - syn of: Ancylus fluviatilis Müller, 1774
meridionalis, Gyraulus meridionalis Brazier, 1875
metidjensis, Planorbis metidjensis Bourguignat, 1880
metidjensis, Planorbarius metidjensis Forbes, 1839 - syn of: Planorbarius dufourii (Graells, 1846)
metochiensis, Anisus metochiensis Miloševic, 1976 † (FOSSIL)
mexicanus, Planorbis mexicanus Dunker, 1850 - syn of: Pierosoma tenuis (Dunker, 1850)
mica, Segmentina mica Westerlund, 1883 - syn of: Polypylis nitidella (Von Martens, 1877)
microcephala, Segmentina microcephala Servain, 1881 - syn of: Segmentina nitida (Müller, 1774)
micromphalus, Gyraulus micromphalus (Fuchs, 1870)
micromphalus, Planorbis micromphalus Grimm, 1876 - syn of: Anisus eichwaldi (Grimm, 1888)
microombilicatus, Gyraulus microombilicatus Grossu, 1987 - syn of: Gyraulus albus (Müller, 1774)
microstatus, Bathyomphalus microstatus (Bourguignat, 1881)
microtrochus, Choanomphalus microtrochus Lindholm, 1909
mienanus, Gyraulus mienanus Brown, 1998
milleri, Ancylus milleri Dohrn, 1869
minus, Helisoma minus (Cooper, 1870)
minusculus, Anisus minusculus Moskvicheva, 1980
minutus, Gyraulus minutus (Hilgendorf, 1867)
minutus, Anomphalodes minutus Grabau, 1936 † (FOSSIL)
minutus, Promenetus minutus Taylor, 1954 - syn of: Micromenetus dilatatus avus (Pilsbry, 1905)
misellus, Africanogyrus misellus (Morelet, 1868)
modesta, Ferrissia modesta (Crosse, 1880)
moedlingensis, Bathyomphalus moedlingensis (Sauerzopf, 1953) † (FOSSIL)
molytes, Segmentina molytes (Westerlund, 1885)
montanus, Taphius montanus (D'Orbigny, 1835)
montanus, Planorbis montanus Biese, 1951 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
montanus, Planorbis montanus D'Orbigny, 1835 - syn of: Biomphalaria andecola (D'Orbigny, 1835)
montanus andecolus, Taphius montanus andecolus (D'Orbigny, 1835)
montanus bakeri, Taphius montanus bakeri (D'Orbigny, 1835)
montanus concatenatus, Taphius montanus concatenatus (D'Orbigny, 1835)
montanus concentratus, Taphius montanus concentratus (D'Orbigny, 1835)
montanus heteropleurus, Taphius montanus heteropleurus Pilsbry & Vanatta
montanus titicaensis, Taphius montanus titicaensis Clessin - syn of: Taphius montanus heteropleurus Pilsbry & Vanatta
montgazoniana, Segmentina montgazoniana Servain, 1881 - syn of: Segmentina nitida (Müller, 1774)
mooiensis, Ancylastrum mooiensis Walker, 1912
moquini, Planorbis moquini Réquien, 1848
moravicus, Ancylus moravicus Rzehak, 1893 † (FOSSIL)
moreleti, Ancylus moreleti Bourguignat, 0 - syn of: Ancylus fluviatilis Müller, 1774
moricandi, Hebetancylus moricandi (D'Orbigny, 1837)
muelleri, Atopippeutis muelleri Kadolsky, 2015 † (FOSSIL)
multicingulatus, Gyraulus multicingulatus (Wenz, 1919)
multiformis, Gyraulus multiformis (Zeiten, 1832)
multivolvis, Planorbella multivolvis Case, 1847
mutandensis, Bulinus mutandensis Preston, 1913
nana, Planorbarius nana Pennant, 1776 - syn of: Planorbarius corneus (Linnaeus, 1758)
nana, Ancylastrum nana Walker, 1912
nasutus, Bulinus nasutus Von Martens, 1879
natalensis, Afrogyrorbis natalensis (Krauss, 1848)
natalensis, Gyraulus natalensis Krauss, 1848 - syn of: Afrogyrorbis natalensis (Krauss, 1848)
natalensis, Bulinus natalensis Küster, 1841
natalensis, Ferrissia natalensis Walker, 1924
nautileus, Armiger nautileus Linnaeus, 1767 - syn of: Gyraulus crista (Linnaeus, 1758)
nautiliformis, Gyraulus nautiliformis (Gozhik & Prysjazhnjuk, 1978)
nedici, Gyraulus nedici (Brusina, 1902)
nedyalkovi, Gyraulus nedyalkovi Glöer & Georgiev, 2012
nematophorus, Gyraulus nematophorus (Brusina, 1902)
neozelanica, Ferrissia neozelanica (Suter, 1905)
neozelanica, Gundlachia neozelanica Suter, 1905 - syn of: Ferrissia neozelanica (Suter, 1905)
neritoides, Vorticifex effusa neritoides Baker
neumayri, Ferrissia neumayri (Fontannes, 1881) † (FOSSIL)
nevadensis, Parapholyx nevadensis Henderson, 1934
newberryi, Helisoma newberryi Lea, 1858
newberryi jacksonensis, Helisoma newberryi jacksonensis Henderson, 1932
newberryi occidentalis, Helisoma newberryi occidentalis Hanna, 1924
newcombi, Isidorella newcombi (Adams & Angas, 1864)
nicaraguana, Biomphalaria nicaraguana (Morelet, 1851)
nigricans, Helisoma nigricans (Spix, 1827)
nigricans, Australorbis nigricans Lutz, 1919 - syn of: Biomphalaria tenagophila (D'Orbigny, 1835)
nigricans, Planorbis nigricans Spix, 1827 - syn of: Biomphalaria glabrata (Say, 1818)
nikolensis, Anisus nikolensis (Dybowski, 1913)
nipponica, Laevapex nipponica Kuroda, 1947
nipponica, Camptoceras nipponica Walker, 1919
nisseanus, Planorbis nisseanus Pavlovic, 1931 † (FOSSIL)
nitida, Segmentina nitida (Müller, 1774)
nitidella, Polypylis nitidella (Von Martens, 1877)
nitidus, Hippeutis nitidus Gray, 1840 - syn of: Hippeutis complanatus (Linnaeus, 1758)
nitidus clessini, Planorbis nitidus clessini Westerlund, 1873 - syn of: Segmentina clessini (Westerlund, 1873)
nitidus distinguenda, Planorbis nitidus distinguenda Gredler, 1859 - syn of: Segmentina distinguenda (Gredler, 1859)
nitidus molytes, Planorbis nitidus molytes Westerlund, 1885 - syn of: Segmentina molytes (Westerlund, 1885)
nitidus oelandicus, Planorbis nitidus oelandicus Westerlund, 1885 - syn of: Segmentina oelandica (Westerlund, 1885)
nordestense, Drepanotrema nordestense (Lucena, 1954)
nordestensis, Antillorbis nordestensis Lucena, 1954 - syn of: Drepanotrema nordestense (Lucena, 1954)
novaki, Gyraulus novaki (Brusina, 1897)
noziriensis, Anisus noziriensis Mori, 1938
numidicus, Planorbis numidicus Bourguignat, 1864 - syn of: Planorbis moquini Réquien, 1848
nummulus, Anisus nummulus (Held, 1837)
nusici, Gyraulus nusici (Pavlovic, 1903)
nyassanus, Bulinus nyassanus Smith, 1877
oasiensis, Africanogyrus oasiensis (Demian, 1962)
obesa, Ameria obesa Adams, 1861 - syn of: Amerianna obesula Iredale, 1943
obesula, Amerianna obesula Iredale, 1943
obesus, Bathyomphalus obesus (Baily, 1858) † (FOSSIL)
obliquus, Anisancylus obliquus (Broderip & Sowerby, 1832)
oblonga, Ferrissia deperdita oblonga Clessin (FOSSIL)
obstructa, Biomphalaria obstructa (Morelet, 1849)
obstructa anodonta, Planorbula obstructa anodonta Pilsbry, 1920 - syn of: Biomphalaria obstructa (Morelet, 1849)
obtusata, Ancylastrum obtusata Walker, 1926
obtusispira, Bulinus obtusispira Smith, 1882
obtusus, Bulinus obtusus Mandahl-Barth, 1973
obtusus, Ancylus obtusus Morelet, 1845 - syn of: Ancylus fluviatilis Müller, 1774
occidentalis, Planorbella occidentalis Cooper, 1870
occidentalis, Helisoma newberryi occidentalis Hanna
occidentalis, Biomphalaria occidentalis Paraense, 1981
occidentalis, Ferrissia occidentalis Walker, 1924 - syn of: Ferrissia walkeri (Pilsbry & Ferriss, 1907)
oconnori, Glyptophysa oconnori (Cumber, 1941)
oconnori, Physastra oconnori Cumber, 1941 - syn of: Glyptophysa oconnori (Cumber, 1941)
octaploidus, Bulinus octaploidus Burch, 1972
octoploidus, Bulinus octoploidus Burch, 1972 - syn of: Bulinus octaploidus Burch, 1972
oecsensis, Gyraulus oecsensis Wenz, 1919
oelandica, Segmentina oelandica (Westerlund, 1885)
okhoticus, Choanomphalus okhoticus Prozorova & Starobogatov, 1997
okrugljakensis, Gyraulus okrugljakensis Neubauer & al., 2014
oligoza, Biomphalaria oligoza Paraense, 1975
olivaceus, Planorbis olivaceus Spix, 1827 - syn of: Biomphalaria glabrata (Say, 1818)
omalus, Anisus omalus (Bourguignat, 1881) † (FOSSIL)
omphalotus, Choanomphalus omphalotus Dybowski, 1901
oncostomus, Gyraulus oncostomus (Brusina, 1902)
opercularis, Menetus opercularis (Gould, 1847)
orahovacensis, Gyraulus orahovacensis (Pavlovic, 1903)
orbicula, Biomphalaria orbicula (Morelet, 1849)
orbicularis, Ancylus orbicularis Held, 1837
orbiculus dunkeri, Tropicorbis orbiculus dunkeri Baker, 1945 - syn of: Biomphalaria orbicula (Morelet, 1849)
orbignyi, Biomphalaria orbignyi Paraense, 1975
oregonensis, Planorbella oregonensis Tryon, 1865
orientalis, Planorbis orientalis Olivier, 0 - syn of: Planorbis planorbis (Linnaeus, 1758)
ovalina, Physastra ovalina (Von Martens, 1897)
ovoidea, Physopsis ovoidea Bourguignat, 1879
oxystoma, Gyraulus oxystoma (Klein, 1846)
pachychilus, Gyraulus pachychilus (Brusina, 1902)
pajelli, Anomphalodes pajelli Cook, 1997 † - syn of: Antirotella pajelli (Cook, 1997) † (FOSSIL)
paladilhi, Planorbis paladilhi Moitessier, 1867 - syn of: Gyraulus crista (Linnaeus, 1758)
paladilhi, Armiger paladilhi Moitessier, 1867 - syn of: Gyraulus crista (Linnaeus, 1758)
pallaryi, Ferrissia pallaryi Walker, 1914
pallidus, Biomphalaria pallidus (Adams, 1848)
pamphylicus, Gyraulus pamphylicus Glöer & Rähle, 2009
panamensis, Biomphalaria panamensis (Dunker, 1848)
pankongensis, Gyraulus pankongensis Von Martens, 1882
panuco, Fossulorbis cultratum panuco Pilsbry
papillaris, Laevapex papillaris (Von Martens, 1899)
papillosa, Kessneria papillosa Walker & Ponder, 2001
parallelus, Ferrissia parallelus (Haldeman, 1841)
pararyensis, Biomphalaria pararyensis (Baker, 1914)
parmophorus, Ancylus parmophorus De Stefani, 1880 † (FOSSIL)
paropseides, Planorbis paropseides D'Orbigny, 1835 - syn of: Drepanotrema limayanum (Lesson, 1830)
parvulus, Gyraulus parvulus (Lörenthey, 1906)
parvus, Choanomphalus parvus (Kozhov, 1936)
parvus, Gyraulus parvus (Say, 1817)
patagonicus, Ancylus patagonicus Biese, 1948
patulaeformis, Choanomphalus patulaeformis Lindholm, 1909
pavlovici, Gyraulus pavlovici (Brusina, 1893)
paysanduensis, Planorbis paysanduensis Marshall, 1930 - syn of: Biomphalaria tenagophila (D'Orbigny, 1835)
pectorosa, Glyptophysa pectorosa (Conrad, 1850)
pedrinus, Planorbis pedrinus Miller, 1879 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
pelecystoma, Gyraulus pelecystoma Brown, 1975
penchinati, Planorbarius penchinati (Bourguignat, 1870)
peninsulae, Laevapex peninsulae Pilsbry, 1903
peraudieri, Ancylus peraudieri Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
percarinatus, Gyraulus percarinatus Paraense, 2000
perdisjunctum, Helisoma subcrenatum perdisjunctum Baker
peregrina, Biomphalaria peregrina (D'Orbigny, 1835)
peregrinus, Taphius peregrinus D'Orbigny, 1861 - syn of: Biomphalaria straminea (Dunker, 1848)
perezii, Anisus perezii (Graells, 1850)
permembranaceus, Bulinus permembranaceus Preston, 1912
permianus, Anomphalodes permianus King, 1848 † - syn of: Straparollus permianus (King, 1848) † (FOSSIL)
persicus, Planorbis persicus Ancey, 1900 - syn of: Planorbis intermixtus Mousson, 1874
perstriatulus, Gyraulus perstriatulus Preston, 1916
pertenue, Pierosoma tenue pertenue Baker
pertenuis, Pierosoma tenuis pertenuis Baker
peruvianum, Helisoma peruvianum (Broderip, 1832)
peruzzii, Gyraulus peruzzii (De Stefani, 1880) † (FOSSIL)
petenensis, Biomphalaria petenensis (Morelet, 1851)
petiti, Glyptophysa petiti (Crosse, 1872)
petricola, Acrorbis petricola Odhner, 1937
petropolitana, Segmentina petropolitana Kruglov & Soldatenko, 1997
petrovici, Planorbis petrovici Pavlovic, 1931 † (FOSSIL)
petterdi, Ferrissia petterdi (Johnston, 1879)
pfeifferi, Biomphalaria pfeifferi (Krauss, 1848)
phacecercus, Gyraulus phacecercus (Brusina, 1902)
philippei, Planorbarius philippei (Locard, 1883) † (FOSSIL)
philippianus, Ancylus philippianus Biese, 1948
philippianus, Planorbis philippianus Dunker, 1848 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
philippianus, Planorbis philippianus Monterosato, 1902 - syn of: Planorbis planorbis (Linnaeus, 1758)
philippii, Planorbis philippii Germain, 1908 - syn of: Planorbis planorbis (Linnaeus, 1758)
pileatum, Drepanotrema pileatum Paraense, 1971
pileolus, Ancylus pileolus Férussac, 1822 - syn of: Ancylus fluviatilis Müller, 1774
pileolus, Protancylus pileolus Sarasin & Sarasin, 1898
pilosa, Isidorella pilosa (Tenison-Woods, 1878)
pilsbryi, Planorbella pilsbryi Baker, 1926
pilsbryi infracarinatum, Planorbella pilsbryi infracarinatum Baker, 1932
pilsbryi preblei, Planorbella pilsbryi preblei Baker, 1945
pinguis, Planorbarius pinguis (Westerlund, 1885)
piscinarium, Gyraulus piscinarium Bourguignat, 1852 - syn of: Gyraulus piscinarum (Bourguignat, 1852)
piscinarum, Gyraulus piscinarum (Bourguignat, 1852)
planitesta, Gyraulus verticillus planitesta Sauerzopf
planoconcavus, Gyraulus planoconcavus Westerlund, 1897 - syn of: Gyraulus rossmaessleri (Auerswald, 1851)
planodiscus, Segmentorbis planodiscus (Melvill & Ponsonby, 1897)
planorbiformis, Choanomphalus planorbiformis Beckmann & Starobogatov, 1975
planorbis, Planorbis planorbis (Linnaeus, 1758)
planorbis antilibanensis, Planorbis planorbis antilibanensis Blanckenhorn, 1897 † (FOSSIL)
planorbis tangitarensis, Planorbis planorbis tangitarensis Germain, 1918
planospiralis, Choanomphalus planospiralis Dybowski & Grochmalicki, 1925 - syn of: Choanomphalus korotnevi Lindholm, 1909
platylenus, Ancylus platylenus Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
platystomus, Gyraulus platystomus Nützel & Bandel, 1993
pleistocenicum, Planorbella campanulata pleistocenicum Baker
poeyanus, Planorbis poeyanus Clessin, 1884 - syn of: Drepanotrema cimex (Moricand, 1839)
polaris, Planorbis polaris Westerlund, 1885 - syn of: Anisus infraliratus (Westerlund, 1876)
politum, Helisoma anceps politum Baker
ponsonbyi, Ancylastrum ponsonbyi Walker, 1924
ponticus, Gyraulus ponticus (Lörenthey, 1893)
pontileviensis, Ferrissia pontileviensis (Morgan, 1920) † (FOSSIL)
popovici, Gyraulus popovici (Pavlovic, 1927)
popovici complanatus, Gyraulus popovici complanatus Sauerzopf, 1953 - syn of: Gyraulus micromphalus (Fuchs, 1870)
porcellaneus, Gyraulus porcellaneus (Lörenthey, 1902)
portlandensis, Menetus portlandensis Baker, 1945
praeclara, Physopsis praeclara Bourguignat, 1879
praecorneus, Planorbarius praecorneus (Fischer & Tournouër, 1873) † (FOSSIL)
praecursor, Planorbis praecursor Cossmann, 1883 † (FOSSIL)
praeponticus, Gyraulus praeponticus (Gorjanovic-Kramberger, 1890)
prashadi, Camptoceras prashadi Clench, 1931
prasongi, Gyraulus prasongi Brandt, 1974
preblei, Planorbella pilsbryi preblei Baker
presbensis, Planorbis presbensis Sturany, 1894 - syn of: Planorbis prespensis Sturany, 1894
prespensis, Planorbis prespensis Sturany, 1894
primiformis, Gyraulus primiformis (Sauerzopf, 1953)
primordialis, Planorbis primordialis Piton, 1940 † (FOSSIL)
prona, Biomphalaria prona (Von Martens, 1873)
protectus, Gyraulus protectus Jekelius, 1944
protocrescens, Gyraulus protocrescens Nützel & Bandel, 1993
providentialis, Hebetancylus providentialis Wurtz, 1951
pseudhomalosomus, Gyraulus pseudhomalosomus (Sauerzopf, 1953)
pseudocostulatus, Gyraulus pseudocostulatus Grossu, 1987 - syn of: Gyraulus albus (Müller, 1774)
pseudotenuis, Gyraulus pseudotenuis (Hilgendorf, 1867)
pseudotrivolvis, Planorbella pseudotrivolvis Baker, 1920
ptychodes, Gyraulus verticillus ptychodes Lörenthey
ptychostomus, Gyraulus ptychostomus (Brusina, 1902)
ptycophorus, Gyraulus ptycophorus (Brusina, 1892)
pucarensis, Biomphalaria pucarensis (Preston, 1909)
pulchellus, Drepanotrema pulchellus Philippi, 0 - syn of: Drepanotrema cimex (Moricand, 1839)
pulcher, Gyraulus pulcher Mori, 1938
pulici, Gyraulus pulici (Brusina, 1897)
purpura, Planorbarius purpura (Müller, 1774)
purpurea, Planorbarius purpurea Müller, 1774 - syn of: Planorbarius corneus (Linnaeus, 1758)
pygmaeus, Menetus pygmaeus Deshayes, 1863 † (FOSSIL)
pygmaeus, Choanomphalus pygmaeus Lindholm, 1909
pyramidata, Glyptophysa pyramidata Sowerby, 1873
quadrangulus, Gyraulus quadrangulus (Neumayr, 1875) † (FOSSIL)
quadrangulus bassarabicus, Gyraulus quadrangulus bassarabicus Macarovici, 1940 † (FOSSIL)
quadrangulus complanatus, Gyraulus quadrangulus complanatus Jekelius, 1932 † (FOSSIL)
quadrangulus tectus, Gyraulus quadrangulus tectus Jekelius, 1932 † (FOSSIL)
radiata, Gundlachia radiata (Guilding, 1828)
radiatus, Ancylus radiatus Guilding, 1828 - syn of: Gundlachia radiata (Guilding, 1828)
radmanesti, Fuchsogyra radmanesti (Fuchs, 1870) † (FOSSIL)
raimondi, Biomphalaria raimondi (Philippi, 1869)
randolphi, Planorbella trivolvis randolphi Baker
rara, Helicorbis rara Moskvicheva, 1985
rasseri, Gyraulus rasseri Neubauer & al., 2014
raymondi, Ancylus raymondi Bourguignat, 1853 - syn of: Ancylus fluviatilis Müller, 1774
recurvum, Ancylus recurvum Dupuy, 1850 - syn of: Ancylus fluviatilis Müller, 1774
recurvum, Ancylus recurvum Küster, 1893 - syn of: Ancylus fluviatilis Müller, 1774
recurvus, Ancylus recurvus Von Martens, 1873
reevii, Amerianna reevii (Adams & Angas, 1864)
regularis, Ancylus regularis Brown, 1973
regularis, Gyraulus regularis Hartmann, 1844 - syn of: Gyraulus laevis (Alder, 1838)
reissi, Nautilinus reissi Mousson, 1872 - syn of: Nautilinus clymene (Shuttleworth, 1852)
renardii, Ancylus renardii Dybowski, 1884 - syn of: Pseudancylastrum troschelii (Dybowski, 1875)
reticulatus, Bulinus reticulatus Mandahl-Barth, 1954
reticulatus, Planorbarius reticulatus Roshka, 1973 † (FOSSIL)
retusus, Biomphalaria retusus (Morelet, 1849)
reversa, Biomphalaria reversa Cabrera, Martínez & Norbis, 2016 † (FOSSIL)
revertens, Gyraulus revertens (Hilgendorf, 1867)
rezvoji, Camptoceras rezvoji (Lindholm, 1929)
rhodesiensis, Biomphalaria rhodesiensis Mandahl-Barth, 1957
rhytidophorus, Gyraulus rhytidophorus (Brusina, 1902)
rideauense, Planorbella campanulata rideauense Baker
riparius, Gyraulus riparius (Westerlund, 1865)
riparius, Ancylus riparius Desmarest, 1814 - syn of: Ancylus fluviatilis Müller, 1774
rivularis, Ferrissia rivularis (Say, 1817)
rivularis, Bulinus truncatus rivularis Philippi
rodriguezensis, Africanogyrus rodriguezensis (Crosse, 1873)
rohlfsi, Bulinus truncatus rohlfsi Clessin
rohlfsi, Bulinus rohlfsi Clessin, 1886 - syn of: Bulinus truncatus rohlfsi (Clessin, 1886)
romani, Planorbarius romani (Jodot, 1958) † (FOSSIL)
rosanae, Sineancylus rosanae (Gutiérrez Gregoric, 2012)
roseae, Seminolina roseae Petuch, 1991 † (FOSSIL)
roshkai, Planorbis roshkai Prysjazhnjuk & Kovalenko, 1986 † (FOSSIL)
roskai, Segmentina roskai Gozhik & Prysjazhnjuk, 1978 † (FOSSIL)
rossiteri, Gyraulus rossiteri (Crosse, 1871)
rossmaessleri, Gyraulus rossmaessleri (Auerswald, 1851)
rossmassleri, Planorbis rossmassleri Hartwich, 1914 - syn of: Gyraulus acronicus (Férussac, 1807)
rotella, Gyraulus rotella (Rousseau, 1842)
rotula, Gyraulus rotula (Benson, 1850)
rotundatus, Planorbis rotundatus Dybowski, 1912 - syn of: Anisus leucostoma (Millet, 1813)
rotundatus, Anisus rotundatus Poiret, 1801 - syn of: Anisus spirorbis (Linnaeus, 1758)
rotundistomus, Gyraulus rotundistomus (Sauerzopf, 1953)
rotundostomus, Gyraulus rotundostomus Nützel & Bandel, 1993
rousianus, Anisus rousianus (Noulet, 1854) † (FOSSIL)
rouxi, Hippeutis rouxi (Noulet, 1863) † (FOSSIL)
royalense, Helisoma anceps royalense Walker
royoi, Planorbarius royoi (Jodot, 1958) † (FOSSIL)
ruandensis, Ferrissia ruandensis Thiele, 1911
rugosa, Hebetancylus rugosa Clarke, 1980
rumanus, Gyraulus rumanus Wenz, 1932
rupicola, Ancylus rupicola Mousson, 1872 - syn of: Ancylus striatus Quoy & Gaimard, 1833
sabljari, Gyraulus sabljari (Brusina, 1892)
sachsenhoferi, Gyraulus sachsenhoferi Harzhauser & al., 2012 † (FOSSIL)
saeprusanus, Bulinus saeprusanus Paulucci, 1882 - syn of: Bulinus truncatus (Audouin, 1827)
saigonensis, Gyraulus saigonensis (Crosse & Fischer, 1863)
salinarum, Biomphalaria salinarum (Morelet, 1868)
salleanus, Planorbis salleanus Dunker, 1853 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
sallei, Laevapex sallei (Bourguignat, 1857)
sallei, Ancylus sallei Böttger, 1857
saltensis, Gyraulus saltensis Germain, 1922
salvini, Planorbis salvini Clessin, 1884 - syn of: Pierosoma wyldi (Tristram, 1861)
sampsoni, Menetus sampsoni Ancey, 1885
sansaniensis, Planorbarius sansaniensis (Noulet, 1854) † (FOSSIL)
santacruzensis, Planorbis santacruzensis Germain, 1932 - syn of: Drepanotrema aeruginosum (Morelet, 1851)
sarasinorum, Anisus sarasinorum (Bohlinger, 1914)
saucatsensis, Ancylus saucatsensis Peyrot, 1932 † (FOSSIL)
sauerzopfi, Gyraulus sauerzopfi Neubauer & al., 2015
saulcyana, Gundlachia saulcyana (Bourguignat, 1853)
scalare, Helisoma scalare Jay, 1839 - syn of: Planorbella scalaris (Jay, 1839)
scalariformis, Ancylus scalariformis Stankovic & Radoman, 1953
scalaris, Planorbella scalaris (Jay, 1839)
scalaris, Bulinus scalaris Dunker, 1845
schamaricus, Gyraulus schamaricus Izzatullaev, 1972
schmackeri, Hippeutis schmackeri (Clessin, 1886)
schmidti, Bulinus schmidti Dunker, 1853 - syn of: Pyrgophysa forskalii (Ehrenberg, 1831)
schmiererianus, Tropicorbis schmiererianus Biese, 1951
schrammi, Biomphalaria schrammi (Crosse, 1864)
schrencki, Choanomphalus schrencki Dybowski, 1875
schrenkii, Choanomphalus schrenkii Dybowski, 1875
schubarti, Drepanotrema schubarti (Haas, 1938)
schulgae, Steklovidiscus schulgae (Gozhik & Prysjazhnjuk, 1978) † (FOSSIL)
scottianus, Gyraulus scottianus Johnston, 1879
seibersdorfensis, Gyraulus seibersdorfensis (Sauerzopf, 1953)
semiglobosa, Polypylis semiglobosa Moskvicheva, 1980
seminole, Seminolina seminole (Pilsbry, 1934) † (FOSSIL)
semiplicata, Bulinus semiplicata Morelet, 1868 - syn of: Pyrgophysa forskalii (Ehrenberg, 1831)
senckenbergiana, Ferrissia senckenbergiana Böttger, 1877 † - syn of: Ferrissia deperdita (Desmarest, 1814) † (FOSSIL)
senegalensis, Bulinus senegalensis Müller, 1781
septemgyratiformis, Anisus septemgyratiformis (Gottschick, 1911) † (FOSSIL)
septemgyratus, Anisus septemgyratus (Rossmässler, 1835)
serbicus, Ancylus serbicus Brusina, 1893 † (FOSSIL)
servaini, Segmentina servaini Servain, 1881 - syn of: Segmentina nitida (Müller, 1774)
shadini, Kolhymorbis shadini Starobogatov & Streletzkaja, 1967
shamaricus, Gyraulus shamaricus Izzatullaev, 1972
sharpi, Ferrissia sharpi (Sykes, 1900)
shasi, Gyraulus shasi Glöer & Pešic, 2007
shilkaensis, Helicorbis shilkaensis Starobogatov, 1996
shimeki, Tropicorbis shimeki Baker, 1945 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
shimekii, Ferrissia shimekii (Pilsbry, 1890)
siamensis, Gyraulus siamensis (Von Martens, 1867)
siamensis, Ferrissia siamensis Brandt, 1974
sibinjensis, Gyraulus sibinjensis (Brusina, 1897)
sibiricus, Ancylus sibiricus Gerstfeldt, 1859 - syn of: Pseudancylastrum aculiferum Starobogatov, 1989
sicula, Hebetancylus sicula (Rüppell, 1844)
sieversi, Planorbis sieversi Likharev & Starobogatov, 1967 - syn of: Planorbis intermixtus Mousson, 1874
sieversi, Planorbis sieversi Mousson, 1873
similis, Planorbarius similis Bielz, 1851 - syn of: Planorbarius corneus (Linnaeus, 1758)
simplex, Ancylus simplex BucHoz, 1771 - syn of: Ancylus fluviatilis Müller, 1774
sinitsini, Vorticifex effusa sinitsini Baker
sisurnius, Planorbis sisurnius Hedley, 1918
sivalensis, Gyraulus sivalensis (Clessin, 1884)
skhiadicus, Gyraulus skhiadicus Bukowski, 1896 - syn of: Gyraulus doricus (Bukowski, 1896)
slavonicus, Gyraulus slavonicus (Brusina, 1897)
smithi, Biomphalaria smithi Preston, 1910
smithi, Neoplanorbis smithi Walker, 1908
smithii, Planorbula smithii Baker, 1945
soceni, Gyraulus soceni Jekelius, 1944
socotrensis, Gyraulus socotrensis Godwin-Austen, 1883
soleilleti, Physopsis soleilleti Bourguignat, 1885
solenoeides, Gyraulus solenoeides (Lörenthey, 1902)
solenoides, Gyraulus solenoides Lörenthey, 1902 - syn of: Gyraulus solenoeides (Lörenthey, 1902)
solida, Vorticifex solida Dall, 1870
solidus, Planorbarius solidus (Thomä, 1845) † (FOSSIL)
soritai, Gyraulus soritai Habe, 1976
spinulosus, Armiger spinulosus Clessin, 1873 - syn of: Gyraulus crista (Linnaeus, 1758)
spirillus, Gyraulus spirillus Gould, 1859
spirorbis, Anisus spirorbis (Linnaeus, 1758)
spiruloides, Menetus spiruloides (Deshayes, 1863) † (FOSSIL)
spissus, Planorbis spissus Cossmann, 1907
splendidus, Umbrellancylus splendidus Piton, 1940 † (FOSSIL)
spondyloides, Anisus spondyloides (Weinland, 1883)
spratti, Gyraulus spratti (Forbes, 1845)
sretenskiensis, Anisus sretenskiensis Prozorova & Starobogatov, 1997
stabilis, Gyraulus stabilis Iredale, 1943
stagnicola, Planorbis stagnicola Morelet, 1851 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
stankovici, Gyraulus stankovici Hadžišce, 1953
stanleyi, Biomphalaria stanleyi (Smith, 1888)
starmuehlneri, Africanogyrus starmuehlneri (Brown, 1980)
starobogatovi, Polypylis starobogatovi Izzatullaev, 1973
starobogatovi, Segmentina starobogatovi Kruglov & Soldatenko, 1997
steinheimensis, Gyraulus steinheimensis (Hilgendorf, 1867)
stelmachoetius, Anisus stelmachoetius (Bourguignat, 1860)
stelmachoetius notatus, Planorbis stelmachoetius notatus Westerlund, 1885 - syn of: Anisus stelmachoetius (Bourguignat, 1860)
stenochorias, Ancylastrum stenochorias Melvill & Ponsonby, 1903
stenomphalus, Segmentina stenomphalus (Brusina, 1902) † (FOSSIL)
stenostoma, Planorbarius stenostoma (Bourguignat, 1881)
stoppanii, Gyraulus stoppanii (Sacco, 1886)
stossichi, Hippeutis stossichi (Clessin, 1878)
straminea, Biomphalaria straminea (Dunker, 1848)
strauchianus, Anisus strauchianus (Clessin, 1884)
strebelianum, Pierosoma tenuis strebelianum Fischer & Crosse
striatulus, Ancylus striatulus Clessin, 1881 - syn of: Ancylus fluviatilis Müller, 1774
striatus, Ancylus striatus Quoy & Gaimard, 1833
striatus, Planorbarius striatus Roshka, 1973 † (FOSSIL)
striatus, Planorbis striatus Serres, 1853 † (FOSSIL)
strictum, Ancylus strictum Morelet, 1845 - syn of: Ancylus fluviatilis Müller, 1774
stroemi, Gyraulus stroemi (Westerlund, 1881)
stromi, Gyraulus stromi (Westerlund, 1881)
stuhlmanni, Ancylastrum stuhlmanni Von Martens, 1897
subangulatus, Planorbis subangulatus Philippi, 1844 - syn of: Planorbis planorbis (Linnaeus, 1758)
subcarinatus, Anisus hilgendorfi subcarinatus Gottschick (FOSSIL)
subcarinatus, Planorbis subcarinatus Pfeiffer, 1894 - syn of: Planorbis planorbis (Linnaeus, 1758)
subcircularis, Ancylus subcircularis Clessin, 1882
subcostatus, Ancylus subcostatus Benoist, 1873 † (FOSSIL)
subcrenatum, Helisoma subcrenatum Carpenter, 1857
subcrenatum perdisjunctum, Helisoma subcrenatum perdisjunctum Baker, 1945
subfiliaris, Anisus subfiliaris Moskvicheva, 1980
subfontanus, Hippeutis subfontanus (Clessin, 1877) † (FOSSIL)
subfontanus latior, Hippeutis subfontanus latior Gottschick, 1920 † (FOSSIL)
subhemistoma, Gyraulus subhemistoma (D'Orbigny, 1852)
submarginatus, Planorbis submarginatus De Cristofori & Jan, 1832 - syn of: Planorbis planorbis (Linnaeus, 1758)
subprona, Biomphalaria subprona (Von Martens, 1899)
subptychophorus, Gyraulus subptychophorus (Halaváts, 1903)
subspinosum, Camptoceras subspinosum Annandale & Prashad, 1920
substroemi, Anisus substroemi Starobogatov & Budnikova, 1976
subtilis, Gyraulus subtilis Mandahl-Barth, 1954
subtilis, Pseudancylus subtilis Penecke, 1891 † - syn of: Ferrissia deperdita (Desmarest, 1814) † (FOSSIL)
subverticillus, Gyraulus subverticillus (Oppenheim, 1919) † (FOSSIL)
succinoides, Bulinus succinoides Smith, 1877
sudanica, Biomphalaria sudanica (Von Martens, 1870)
sudanica tanganyicensis, Biomphalaria sudanica tanganyicensis (Smith, 1881)
sujfunensis, Helicorbis sujfunensis Starobogatov, 1957
sulcatus, Gyraulus sulcatus (Hilgendorf, 1867)
sulcatus, Anisus sulcatus Logvinenko & Starobogatov, 1966
sulekianus, Planorbarius sulekianus (Brusina, 1874)
sulfureus, Gyraulus sulfureus (Royo Gómez, 1922)
sumichrasti, Fossulorbis sumichrasti (Crosse & Fischer, 1879)
supremus, Gyraulus supremus (Hilgendorf, 1867)
surinamense, Drepanotrema surinamense (Clessin, 1884)
surinamense, Fossulorbis surinamense (Clessin, 1884) - syn of: Drepanotrema surinamense (Clessin, 1884)
swinhoei, Segmentina usta swinhoei Adams
symmetricus, Gyraulus symmetricus (Sauerzopf, 1953)
tadzhikistanica, Trochorbis tadzhikistanica Starobogatov & Izzatullaev, 1974
taia, Segmentina taia Annandale & Rao, 1925
tanganyicensis, Biomphalaria sudanica tanganyicensis Smith
tanganyicensis, Ferrissia tanganyicensis Smith, 1906
tangitarensis, Planorbis planorbis tangitarensis Germain
tantillus, Neoplanorbis tantillus Pilsbry, 1906
tapirulus, Ancylus tapirulus Polinski, 1929
tapparonianus, Bulinus tapparonianus Paulucci, 1882 - syn of: Bulinus truncatus (Audouin, 1827)
tarda, Ferrissia tarda (Say)
taseviensis, Gyraulus taseviensis Glöer & Girod, 2013
tasmanica, Ferrissia tasmanica (Tenison-Woods, 1876)
tasmanicus, Gyraulus tasmanicus Tenison-Woods, 1876
tatei, Tropicorbis tatei Baker, 1941 - syn of: Biomphalaria helophila (D'Orbigny, 1835)
tchadiensis, Biomphalaria tchadiensis (Germain, 1904)
tectus, Gyraulus quadrangulus tectus Jekelius (FOSSIL)
temascalensis, Biomphalaria temascalensis Ruiz, 1987
tenagofila, Biomphalaria tenagofila (D'Orbigny, 1835)
tenagophila, Biomphalaria tenagophila (D'Orbigny, 1835)
tenagophila guaibensis, Biomphalaria tenagophila guaibensis Paraense, 1984
tenagophilus, Taphius tenagophilus Paraense, 1958 - syn of: Biomphalaria peregrina (D'Orbigny, 1835)
tenagophyla, Biomphalaria tenagophyla D'Orbigny, 1835 - syn of: Biomphalaria tenagophila (D'Orbigny, 1835)
tenue, Pierosoma tenue (Baker, 1940)
tenue californiensis, Pierosoma tenue californiensis (Baker, 1940)
tenue pertenue, Pierosoma tenue pertenue (Baker, 1940)
tenuilirata, Glyptophysa tenuilirata Smith, 1882
tenuis, Ferrissia tenuis (Bourguignat, 1862)
tenuis, Pierosoma tenuis (Dunker, 1850)
tenuis, Gyraulus tenuis Fuchs, 1870 - syn of: Gyraulus rhytidophorus (Brusina, 1902)
tenuis, Planorbis tenuis Pilsbry, 1891 - syn of: Pierosoma tenuis exaggeratum (Von Martens, 1899)
tenuis applanatus, Planorbis tenuis applanatus Von Martens, 0 - syn of: Pierosoma tenuis pertenuis (Baker, 1940)
tenuis boucardi, Pierosoma tenuis boucardi (Fischer & Crosse, 1880)
tenuis chapalensis, Pierosoma tenuis chapalensis (Pilsbry, 1920)
tenuis exaggeratum, Pierosoma tenuis exaggeratum (Von Martens, 1899)
tenuis pertenuis, Pierosoma tenuis pertenuis (Baker, 1940)
tenuis strebelianum, Pierosoma tenuis strebelianum (Fischer & Crosse, 1880)
tenuis uhdei, Planorbis tenuis uhdei Von Martens, 1899 - syn of: Pierosoma tenuis (Dunker, 1850)
tenuis wyldi, Planorbis tenuis wyldi Tristram, 1861 - syn of: Pierosoma wyldi (Tristram, 1861)
tenuistriatus, Gyraulus tenuistriatus (Gorjanovic-Kramberger, 1899)
tepicensis, Biomphalaria tepicensis (Von Martens, 1899)
terebra, Camptoceras terebra Benson, 1843
terebra hirasei, Camptoceras terebra hirasei Walker, 1919
terekholicus, Anisus terekholicus Prozorova & Starobogatov, 1997
terraesacrae, Gyraulus terraesacrae Rensch, 1934
tetracarinatus, Gyraulus tetracarinatus (Pavlovic, 1903)
thermali, Biomphalaria thermali (Biese, 1951)
thermalis, Gyraulus thermalis Westerlund, 1885 - syn of: Gyraulus laevis (Alder, 1838)
thermalis, Planorbis thermalis Westerlund, 1885 - syn of: Gyraulus laevis (Alder, 1838)
thermochukchensis, Anisus thermochukchensis Prozorova & Starobogatov, 1997
thiollieri, Planorbarius thiollieri (Michaud, 1855) † (FOSSIL)
tiberianum, Ancylus tiberianum Bourguignat, 1862 - syn of: Ancylus fluviatilis Müller, 1774
tiberii, Anisus tiberii De Stefani, 1883 - syn of: Anisus spirorbis (Linnaeus, 1758)
ticaga, Gundlachia ticaga (Marcus & Marcus, 1962)
tinei, Ancylus tinei Bivona-Bernardi, 1839 - syn of: Ancylus fluviatilis Müller, 1774
titticacensis, Planorbis titticacensis Clessin, 1884 - syn of: Biomphalaria andecola (D'Orbigny, 1835)
tokyoensis, Gyraulus tokyoensis Mori, 1938
toroensis, Ferrissia toroensis Mandahl-Barth, 1954
transsylvanicus, Gyraulus transsylvanicus (Neumayr, 1875)
transvaalensis, Ancylastrum transvaalensis Craven, 1880
transversalis, Bulinus transversalis Von Martens, 1897
trapezoidea, Burnupia trapezoidea (Böttger, 1910)
trapezoidea, Ancylus trapezoidea Böttger, 1910 - syn of: Burnupia trapezoidea (Böttger, 1910)
trapezoides, Gyraulus trapezoides Polinski, 1929
traski, Planorbella traski Lea, 1856
trigonus, Bulinus trigonus Von Martens, 1892
triquetrus, Gyraulus triquetrus (Hilgendorf, 1867)
trivolis, Helisoma trivolis Say
trivolvis, Planorbella trivolvis (Say, 1817)
trivolvis, Helisoma trivolvis (Say, 1817) - syn of: Planorbella trivolvis (Say, 1817)
trivolvis binneyi, Planorbella trivolvis binneyi Tryon, 1867
trivolvis intertextum, Planorbella trivolvis intertextum Sowerby, 1878
trivolvis lentum, Planorbella trivolvis lentum (Say, 1817)
trivolvis randolphi, Planorbella trivolvis randolphi Baker, 1945
trivolvis subcrenatum, Helisoma trivolvis subcrenatum Carpenter, 1857 - syn of: Helisoma subcrenatum Carpenter, 1857
trochiformis, Gyraulus trochiformis (Stahl, 1824)
trochiformis applanatus, Gyraulus trochiformis applanatus Thomä, 1845 † - syn of: Gyraulus applanatus (Thomä, 1845) † (FOSSIL)
trochiformis applanatus ludovici, Gyraulus trochiformis applanatus ludovici Noulet, 1854 - syn of: Gyraulus ludovici (Noulet, 1854)
trochiformis costatus, Gyraulus trochiformis costatus Klein, 1846 - syn of: Gyraulus costatus (Klein, 1846)
trochiformis crescens, Gyraulus trochiformis crescens Hilgendorf, 1867 - syn of: Gyraulus crescens (Hilgendorf, 1867)
trochiformis dealbatus, Gyraulus trochiformis dealbatus Braun, 1851 † - syn of: Gyraulus dealbatus (Braun, 1851) † (FOSSIL)
trochiformis denudatus, Gyraulus trochiformis denudatus Hilgendorf, 1867 - syn of: Gyraulus denudatus (Hilgendorf, 1867)
trochiformis elegans, Gyraulus trochiformis elegans Hilgendorf, 1867 - syn of: Gyraulus trochiformis (Stahl, 1824)
trochiformis elegantulus, Gyraulus trochiformis elegantulus Wenz, 1930 - syn of: Gyraulus trochiformis (Stahl, 1824)
trochiformis kleini, Gyraulus trochiformis kleini Gottschick & Wenz, 1916 † - syn of: Gyraulus kleini (Gottschick & Wenz, 1916) † (FOSSIL)
trochiformis kraussi, Gyraulus trochiformis kraussi Klein, 1846 - syn of: Gyraulus steinheimensis (Hilgendorf, 1867)
trochiformis ludovici, Gyraulus trochiformis ludovici Noulet, 1854 - syn of: Gyraulus ludovici (Noulet, 1854)
trochiformis oxystoma, Gyraulus trochiformis oxystoma Klein, 1846 - syn of: Gyraulus oxystoma (Klein, 1846)
trochiformis planorbiformis, Gyraulus trochiformis planorbiformis Hilgendorf, 1867 - syn of: Gyraulus sulcatus (Hilgendorf, 1867)
trochiformis pseudotenuis, Gyraulus trochiformis pseudotenuis Hilgendorf, 1867 - syn of: Gyraulus pseudotenuis (Hilgendorf, 1867)
trochiformis revertens, Gyraulus trochiformis revertens Hilgendorf, 1867 - syn of: Gyraulus revertens (Hilgendorf, 1867)
trochiformis rotundatus, Gyraulus trochiformis rotundatus Klein, 1846 - syn of: Gyraulus trochiformis (Stahl, 1824)
trochiformis steinheimensis, Gyraulus trochiformis steinheimensis Hilgendorf, 1867 - syn of: Gyraulus steinheimensis (Hilgendorf, 1867)
trochiformis subhemistoma, Gyraulus trochiformis subhemistoma D'Orbigny, 1852 - syn of: Gyraulus subhemistoma (D'Orbigny, 1852)
trochiformis subhemistoma teres, Gyraulus trochiformis subhemistoma teres Hilgendorf, 1867 - syn of: Gyraulus minutus (Hilgendorf, 1867)
trochiformis sulcatus, Gyraulus trochiformis sulcatus Hilgendorf, 1867 - syn of: Gyraulus sulcatus (Hilgendorf, 1867)
trochiformis supremus, Gyraulus trochiformis supremus Hilgendorf, 1867 - syn of: Gyraulus supremus (Hilgendorf, 1867)
trochiformis tenuis, Gyraulus trochiformis tenuis Hilgendorf, 1867 - syn of: Gyraulus steinheimensis (Hilgendorf, 1867)
trochiformis triquetrus, Gyraulus trochiformis triquetrus Hilgendorf, 1867 - syn of: Gyraulus triquetrus (Hilgendorf, 1867)
trochiformis turbiniformis, Gyraulus trochiformis turbiniformis Zieten, 1832 - syn of: Gyraulus trochiformis (Stahl, 1824)
trochoidea, Segmentina trochoidea Benson, 1836
trojanus, Bulinus trojanus (Neumayr, 1883) † (FOSSIL)
trolli, Gyraulus trolli (Sauerzopf, 1953)
tropicus, Bulinus tropicus Krauss, 1848
truci, Ferrissia truci Wautier, 1975 † (FOSSIL)
truncata, Planorbella truncata Miles, 1861
truncatocarinatus, Planorbis truncatocarinatus Pavlovic, 1931 † (FOSSIL)
truncatus, Bulinus truncatus (Audouin, 1827)
truncatus, Bulinus truncatus Pfeiffer, 1841 - syn of: Oligostylus hegewischi (Bartsch, 1947)
truncatus coulboisi, Bulinus truncatus coulboisi Bourguignat, 1888
truncatus rivularis, Bulinus truncatus rivularis (Philippi, 1836)
truncatus rohlfsi, Bulinus truncatus rohlfsi (Clessin, 1886)
trygira, Biomphalaria trygira (Philippi, 1869)
tryoni, Vorticifex tryoni Meek
tugurensis, Anisus tugurensis Prozorova & Starobogatov, 1997
tumens, Planorbis tumens Carpenter, 1857 - syn of: Pierosoma tenuis (Dunker, 1850)
tumidus, Planorbis tumidus Dunker, 1850 - syn of: Helisoma foveale (Menke, 1830)
turgida, Hippeutis umbilicalis turgida Benson
turislavicus, Gyraulus turislavicus Jekelius, 1944
turkovici, Planorbarius turkovici (Gorjanovic-Kramberger, 1899) † (FOSSIL)
turritus, Planorbis turritus Müller, 1774 - syn of: Aplexa turrita (Müller, 1774)
ugandae, Bulinus ugandae Mandahl-Barth, 1954
uliginosus, Menetus uliginosus (Vanatta, 1910)
umbilicalis, Hippeutis umbilicalis Benson, 1855
umbilicalis turgida, Hippeutis umbilicalis turgida Benson, 1855
umbilicatellus, Promenetus umbilicatellus (Cockerell, 1887)
umbilicatus, Anomphalodes umbilicatus Knight, 1933 † (FOSSIL)
umbilicatus, Bulinus umbilicatus Mandahl-Barth, 1973
umbilicatus, Planorbis umbilicatus Müller, 1774 - syn of: Planorbis planorbis (Linnaeus, 1758)
umbilicatus, Neoplanorbis umbilicatus Walker, 1908
umbilicatus depressiuscula, Bulinus umbilicatus depressiuscula Mandahl-Barth, 1973
umbilicatus subangulatus, Planorbis umbilicatus subangulatus Philippi, 1844 - syn of: Planorbis planorbis (Linnaeus, 1758)
umbiliciferus, Anisus umbiliciferus (Kozhov, 1936)
ungeri, Hippeutis ungeri (Reuss, 1849) † (FOSSIL)
urdunica, Ferrissia urdunica Alhejoj & Bandel, 2013 † (FOSSIL)
usta, Segmentina usta Gould, 1859
usta swinhoei, Segmentina usta swinhoei Adams, 1866
valvatoides, Choanomphalus valvatoides Dybowski, 1875
variabilis, Glyptophysa variabilis (Gray, 1843)
variabilis, Physastra variabilis Gray, 1843 - syn of: Glyptophysa variabilis (Gray, 1843)
varians, Marinescugyra varians (Fuchs, 1870) † (FOSSIL)
vazi, Laevapex vazi Santos, 1989
velifer, Gyraulus velifer Annandale, 1918
vermicularis, Gyraulus vermicularis (Gould, 1847)
vermicularis, Gyraulus vermicularis Stoliczka, 1862 - syn of: Gyraulus sauerzopfi Neubauer & al., 2015
vermillionense, Planorbella corpulenta vermillionense Baker
verreauxi, Ancylastrum verreauxi Bourguignat, 1853
verruca, Ferrissia verruca (Benson, 1855)
verticilloides, Planorbis verticilloides Pavlovic, 1931 † (FOSSIL)
verticillus, Gyraulus verticillus (Brusina, 1892)
verticillus planitesta, Gyraulus verticillus planitesta (Sauerzopf, 1953)
verticillus ptychodes, Gyraulus verticillus ptychodes (Lörenthey, 1902)
vestita, Physastra vestita Tapparone-Canefri, 1883
vezici, Planorbarius vezici (Brusina, 1897) † (FOSSIL)
vicinus, Ferrissia vicinus Thiele, 1911
victoriae, Acrorbis victoriae (Smith, 1882)
victoriensis, Ferrissia victoriensis Walker, 1912
villatoyensis, Planorbarius villatoyensis (Jodot, 1958) † (FOSSIL)
villosus, Gyraulus villosus Poiret, 1801 - syn of: Gyraulus albus (Müller, 1774)
viola, Ferrissia viola Annandale & Prashad, 1921
virgatus, Gyraulus virgatus (Ludwig, 1865)
viridis, Planorbis viridis Spix, 1827 - syn of: Biomphalaria glabrata (Say, 1818)
vitojensis, Planorbis vitojensis Glöer & Pešic, 2010
vitoldianus, Armiger vitoldianus Dybowski & Grochmalicki, 1922 - syn of: Gyraulus crista (Linnaeus, 1758)
vitraceus, Ancylus vitraceus Morelet, 1845 - syn of: Ancylus fluviatilis Müller, 1774
vortex, Anisus vortex (Linnaeus, 1758)
vortex, Disculifer vortex Linnaeus, 1758 - syn of: Anisus vortex (Linnaeus, 1758)
vortex carinea, Disculifer vortex carinea Westerlund, 1897 - syn of: Anisus carinea (Westerlund, 1897)
vortex discoides, Planorbis vortex discoides Reinhardt, 1870 - syn of: Anisus discoides (Reinhardt, 1870)
vorticulus, Anisus vorticulus Troschel, 1834
vrapceanus, Gyraulus vrapceanus Neubauer & al., 2014
vulcanus, Ancylastrum vulcanus Walker, 1924
wahlbergi, Bulinus wahlbergi Krauss, 1848 - syn of: Pyrgophysa forskalii (Ehrenberg, 1831)
walkeri, Ferrissia walkeri (Pilsbry & Ferriss, 1907)
wansoni, Biomphalaria camerunensis wansoni Mandahl-Barth
waterhousei, Gyraulus waterhousei (Clessin, 1885)
waterhousei, Planorbis waterhousei Clessin, 1885 - syn of: Gyraulus waterhousei (Clessin, 1885)
wautieri, Ferrissia wautieri Mirolli, 1960 - syn of: Ferrissia clessiniana (Jickeli, 1882)
westerlundianus, Choanomphalus amauronius westerlundianus Lindholm
wheatleyi, Planorbula armigera wheatleyi Lea
whiteavesi, Planorbella corpulenta whiteavesi Baker
wittmanni, Ferrissia wittmanni Schlickum, 1964 † (FOSSIL)
wrighti, Bulinus wrighti Mandahl-Barth, 1965
wyldi, Pierosoma wyldi (Tristram, 1861)
wyldi salvini, Helisoma wyldi salvini Clessin, 1884 - syn of: Pierosoma wyldi (Tristram, 1861)
xerampelinus, Planorbis xerampelinus Drouët, 1859 - syn of: Biomphalaria glabrata (Say, 1818)
yzabalensis, Drepanotrema yzabalensis Crosse & Fischer, 1880 - syn of: Drepanotrema anatinum (D'Orbigny, 1835)
zambesiensis, Ferrissia zambesiensis Walker, 1912
zambiensis, Ferrissia zambiensis Mandahl-Barth, 1968
zelenensis, Anisus zelenensis Prozorova & Starobogatov, 1997
zemendorfensis, Gyraulus zemendorfensis (Sauerzopf, 1953)
zhirmunskii, Anisus zhirmunskii Prozorova, 2003
zilchianus, Gyraulus zilchianus Yen, 1939
zivkovici, Planorbis zivkovici Pavlovic, 1931 † (FOSSIL)
zoebeleini, Gyraulus zoebeleini Schlickum & Strauch, 1974
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