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