Rhodacmea hinkleyi (B. Walker, 1908) USA, Arizona
Gyraulus hirsutus (A.A. Gould, 1840) Iowa, Cedar Lake
Gundlachia hjalmarsoni L. Pfeiffer, 1858 Honduras
Gyraulus hoernesi (H. Rolle, 1860)
Drepanotrema hoffmani F.C. Baker, 1941 Guadeloupe
Gyraulus homalosomus (Š. Brusina, 1902)
Gyraulus homsensis (P. Dautzenberg, 1894) Turkey
Biomphalaria hondurasensis (S. Clessin, 1878) Honduras
Gyraulus horasanensis (FOSSIL) Schütt, 1991 †
Gyraulus hornensis F.C. Baker, 1934 Nevada
Planorbella hornii (G.W. Tryon, 1865)
Gyraulus hubendicki R.A.M. Brandt, 1974 Thailand
Ancylus hungaricus (FOSSIL) Š. Brusina, 1902 †
Glyptophysa huonensis J.E. Tenison-Woods, 1876 Australia
Gyraulus huwaizahensis P. Glöer & M.D. Naser,2005 Iraq, Tigris and Euphrates basin
Choanomphalus huzhirensis J. Beckmann& Y.I. Starobogatov, 1975
Choanomphalus hyaliniiformis I.M. Moskvicheva in Dworiadkin, 1980
Anisus hypocyrtus G. Servain, 1888
Gyraulus ignoratus (FOSSIL) Schlickum & Puisségur,1977 †
Anisus ignotellus (W. Dybowski, 1913)
Gyraulus illibatus C.A. Westerlund, 1883 Japan, Kagoshima3,1 mm
Ferrissia illyrica (FOSSIL) (M. von Neumayr, 1880 †) Croatia
Choanomphalus incertus W.A. Lindholm, 1909
Planorbarius incrassatus (FOSSIL) (J.P. Rambur, 1862 †)
Hebetancylus indica A. Naef, 1923 Sri Lanka
Gyraulus infirmus (A. Mori, 1938) Japan
Anisus infraliratus (C.A. Westerlund, 1876) Russia, Yenisei River
Burnupia ingae R.M. Lanzer, 1991 Brazil
Segmentina inniae N.D. Kruglov& E.V. Soldatenko, 1997
Gyraulus inornatus (Š. Brusina, 1902)
Biomphalaria intermedia (W.L. Paraense& S. Deslandes, 1962) Brazil, Goias
Planorbis intermixtus A. Mousson, 1874 Iran, Mazandaran Province
Gyraulus ioanis P. Glöer & V.M. Pešic,2007 Montenegro
Ferrissia irrorata (L. Guilding, 1828) Dominica
Ancylastrum irvinae W.F. Petterd, 1888 Tasmania