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