Ogasawarana hirasei (H.A. Pilsbry, 1902) Japan, Ogasawara Islands
Alcadia hirsuta (C.B. Adams, 1850) Jamaica
Alcadia hispida (L. Pfeiffer, 1839) Cuba
Alcadia hjalmarsoni (L. Pfeiffer, 1856)
Microalcadia hojarasca (I. Richling, 2001) Costa Rica2,4 mm
Troschelviana holguinensis (C.G. Aguayo, 1932) Cuba
Alcadia hollandi (C.B. Adams, 1849) Jamaica10 mm
Fadyenia hollandiana (C.B. Adams, 1850) Jamaica
Lucidella holoserica A.J. Wagner, 1911
Tristramia hondurana H.G. Richards, 1938 Honduras, Roatan Island
Helicina huacapistana H.A. Pilsbry, 1949 Peru
Aphanoconia hungerfordianum (P.B. Schmacker& O. Böttger, 1891) Taiwan
Aphanoconia hungerfordianum formosanum (P.B. Schmacker& O. Böttger, 1891) Taiwan5,1 mm
Aphanoconia hungerfordianum hainanensis (O.F. von Möllendorff,1882) Taiwan5,3 mm
Ceratopoma idae (L. Pfeiffer, 1856)
Lucidella ignicoma (R.J.L. Guppy, 1868) Tobago
Helicina iguapensis H.A. Pilsbry, 1900 Brazil, Sao Paulo11 mm
Alcadia iheringi A.J. Wagner, 1910 Brazil
Lucidella inaequalis (L. Pfeiffer) Jamaica
Helicina inaequistriata H.A. Pilsbry, 1900 Brazil, Sao Paulo9,8 mm
Helicina inca H.B. Preston, 1914
Alcadia incrustata (J. Gundlach in L. Pfeiffer, 1859) Cuba
Poenia indecora H.A. Pilsbry, 1930 Honduras
Geotrochatella insignis P. Dautzenberg, 1895
Helicina invectita H.A. Pilsbry& E.G. Vanatta, 1928 Haiti
Oxyrhombus isthmica H.A. Pilsbry, 1926 Panama
Alcadia jamaicensis G.B. Sowerby, 1842 Jamaica10,4 mm
Pleuropoma jana (J.C. Cox, 1872) Australia, Kempsey4,6 mm
Alcadia jansoni (E.C. Von Martens, 1890) Honduras6 mm
Waldemaria japonica (C.B. Adams, 1861) Kyoto, Japan17,8 mm
Waldemaria japonica expolita (H.A. Pilsbry, 1903) Japan10 mm
Waldemaria japonica reinii (W. Kobelt, 1879) Japan, Mie13 mm
Blandia jardineiana E. Chitty, 1857 Jamaica
Fadyenia jeffreysiana E. Chitty, 1857 Jamaica
Poeniella jeremiensis H.A. Pilsbry Haiti