Lamprocystis hahajimana (H.A. Pilsbry, 1902)
Philonesia hahakeae H.B. Baker, 1940
Euconulus hangchowensis H.A. Pilsbry
Philonesia hartmanni (C.M.F. Ancey, 1889)
Discoconulus hilgendorffi (O.W.H. Reinhardt, 1877)
Philonesia hiloi H.B. Baker, 1940
Coneuplecta hirasei H.A. Pilsbry & Y. Hirase,1905
Lamprocystis hornbosteli H.B. Baker, 1938
Microcystis ilapiriensis K.C. Emberton & T.A. Pearce,2000
Philonesia indefinita (C.M.F. Ancey, 1889)
Lamprocystis infans (L. Pfeiffer, 1854)
Microcystis inopina H.B. Preston, 1913
Tengchiena inscensa (C. Hedley, 1912)
Coneuplecta insignis H.A. Pilsbry & Y. Hirase,1904
Philonesia interjecta H.B. Baker, 1940
Afroconulus iredalei (H.B. Preston, 1912)
Tengchiena jacksoniensis (J.E. Gray, 1834)
Guppya jalisco H.A. Pilsbry, 1919
Coneuplecta japonica T. Habe, 1964
Philonesia kaliella H.B. Baker, 1940
Philonesia kauaiensis H.B. Baker, 1940
Microcystis kendrae K.C. Emberton& R.J. Griffiths, 2009
Kieconcha kermadeci (L. Pfeiffer, 1856)
Euconulus kikaigashimae H.A. Pilsbry & Y. Hirase
Lamprocystis kioaensis (A. Garrett, 1875)
Hiona kipui H.B. Baker, 1940
Euconulus konaensis E.R. Sykes, 1897
Philonesia konahuanui H.B. Baker, 1940
Microcystis kremenae K.C. Emberton, 1994
Philonesia kualii H.B. Baker, 1940
Discoconulus lamprobasis (H.A. Pilsbry & Y. Hirase,1905)
Coneuplecta latissima H.A. Pilsbry, 1902
Coneuplecta libertina J.T. Kuroda & J.M. Abe,1980
Euconulus lineatus (H.A. Pilsbry & Y. Hirase,1905)
Hacrochlamys lineolatus H.A. Pilsbry & S. Hirase