Inella asperrima (Hinds, 1843)
Inella carinata B.A. Marshall, 1983
Inella granicostata Kosuge, 1962 – synonym of Latitriphora granicostata (Kosuge, 1962)
Inella intercalaris B.A. Marshall, 1983
Inella japonica Kuroda & Habe, 1963
Inella kimblae B.A. Marshall, 1983
Inella lanceolata Kosuge, 1962
Inella maxillaris (Hinds, 1843) – synonym of Latitriphora maxillaris (Hinds, 1843)
Inella obtusa B.A. Marshall, 1983
Inella sagamiensis (Kuroda & Habe, 1971)
Inella subfenestra Kosuge, 1962 – synonym of Subulophora subfenestra (Kosuge, 1962)
Inella verrucosa (A. Adams & Reeve, 1850)
Iniforis malvacea Jousseaume, 1884
Iniforis malvaceus Jousseaume, 1884 – misspelled name of Iniforis malvacea Jousseaume, 1884
Iniforis turristhomae (Holten, 1802)
Iniforis violacea (Quoy & Gaimard, 1834)
Iniforis violaceus (Quoy & Gaimard, 1834) – misidentification of Iniforis violacea (Quoy & Gaimard, 1834)
Isotriphora nivea (Verco, 1909)
Isotriphora peetersae (Moolenbeek & Faber, 1989)
Isotriphora taenialba Rolán & Espinosa, 1994
Isotriphora tasmanica (Tenison Woods, 1875) – synonym of Isotriphora tasmanica (Tenison Woods, 1876)