Amplirhagada inusitata F. Köhler, 2011 Western Australia, Kimberley
Amphidromus inversus (O.F. Müller, 1774) Vietnam56 mm
Amphidromus inversus albulus C. Sutcharit & S. Panha,2006 Malaysia, Kapas Island39,9 mm
Amphidromus inversus andamanensis L. Pfeiffer, 1871 Indonesia, Sumatra41 mm
Amphidromus inversus annamiticus (J.C.H. Crosse& P.H. Fischer, 1863) Eastern of Thailand37 mm
Amphidromus inversus koperbergi F.F. Laidlaw& G.A. Solem, 1961 Indonesia, Sulawesi62 mm
Polydontes isabella (A.E.J. Férussac, 1821) Grenadines, Saint Vincent23,4 mm
Discoconcha isis (L. Pfeiffer, 1860)
Labyrinthus isodon (L. Pfeiffer, 1852)
Cristilabrum isolatum G.A. Solem, 1985 Australia, Ningbing Ranges
Pleuroxia italowiana G.A. Solem, 1992 South Australia
Nipponochloritis itonis (J.T. Kuroda, 1953) Japan
Amphidromus iunior D.P. Cilia, 2013
Kimberleytrachia jacksonensis F. Criscione & F. Köhler,2015 Western Australia, Kimberley
Tolgachloritis jacksoni (C. Hedley, 1912) Australia, Mareeba
Satsuma jacobii H.A. Pilsbry, 1900 Japan, Shiga
Amphidromus jacobsoni F.F. Laidlaw, 1954 Indonesia23 mm
Glyptorhagada janaslini G.A. Solem, 1992 South Australia
Xanthomelon jannellei (E.J. Le Guillou, 1842) Queensland
Torresitrachia janszi F. Köhler, 2011 Australia, Katers Island
Satsuma japonica (L. Pfeiffer, 1847) Japan, Awaji Island
Satsuma japonica carinata H.A. Pilsbry& J.T. Gulick, 1902 Japan, Kyoto
Satsuma japonica kanamarui (Y. Hirase, 1909) Japan, Mie
Satsuma japonica succinea Y. Hirase, 1909 Bermuda
Amphidromus javanicus (G.B. Sowerby, 1841) Indonesia, West Java52,4 mm
Amphidromus jeffabbasorum Thach, 2016
Badistes jervisensis (J.R.C. Quoy& J.P. Gaimard, 1832) Australia, Sydney20 mm
Semotrachia jessieana G.A. Solem, 1993 Australia, Northern Territory9,96 mm
Sinumelon jimberlanensis G.A. Solem, 1997 Western Australia, Dundas
Semotrachia jinkana G.A. Solem, 1993 Northern Territory
Chloritis johannisi D.P. Cilia, 2010 Indonesia, Sulawesi33 mm
Amphidromus johnstanisici Thach & F. Huber, 2017
Setobaudinia joycei F. Köhler, 2011 Australia, Wulalam Island
Rhynchotrochus jucundus H.C. Fulton, 1896 Papua New Guinea
Papuina jukunda H.C. Fulton, 1902 Indo-Pacific