- Inella obliqua (May, 1915)
- Inella obtusa B.A. Marshall, 1983
- Inella sagamiensis (Kuroda & Habe, 1971)
- Inella spicula Kosuge, 1962
- Inella spina (Verco, 1909)
- Inella verrucosa (A. Adams & Reeve, 1850)
-
Iniforis casta (Hinds, 1843)
Casta Triphora
- Iniforis malvacea Jousseaume, 1884
-
Iniforis turristhomae (Holten, 1802)
St. Thomas Triphora
- Iniforis violacea (Quoy & Gaimard, 1834)
- Isotriphora nivea (Verco, 1909)
-
Isotriphora peetersae (Moolenbeek & Faber, 1989)
White-tipped Triphora
- Isotriphora taenialba Rolán & Espinosa, 1994
- Isotriphora tasmanica (Tenison Woods, 1876)
-
Latitriphora albida (A. Adams, 1854)
Pale Triphora
- Latitriphora conferta (Laseron, 1958)
- Latitriphora granicostata (Kosuge, 1962)
- Latitriphora kesteveni (Hedley, 1903)
- Latitriphora latilirata (Verco, 1909)
- Latitriphora maxillaris (Hinds, 1843)
- Latitriphora multigyrata (Yokoyama, 1922)
- Liniphora restis Laseron, 1958
- Litharium bilineatum (Kosuge, 1962)
- Litharium oceanida (Dall, 1924)
- Magnosinister hedleyi Laseron, 1954
- Marshallora adversa (Montagu, 1803)
- Marshallora bubistae Fernandes & Rolán, 1988
- Marshallora gutta Fernandes & Rolán, 1988
- Marshallora mariangelae Fernandes & Rolán, 1988
-
Marshallora modesta (C.B. Adams, 1850)
Modest Triphora
- Marshallora nigrocincta (C. B. Adams, 1839)
- Mastonia cingulifera (Pease, 1861)
- Mastonia crassula (Martens, 1880)
- Mastonia millepunctata (Kosuge, 1962)
- Mastonia peanites Jousseaume, 1898
- Mastonia rubra (Hinds, 1843)
- Mastonia squalida Kosuge, 1962
- Mastoniaeforis chaperi Jousseaume, 1884
- Mastoniaeforis insulana (Laseron, 1958)
- Metaxia fuscoapicata Thiele, 1930
- Monophorus angasi (Crosse & Fischer, 1865)
-
Monophorus ateralbus Rolán & Fernández-Garcés, 1994
White-banded Triphora
- Monophorus atratus (Kosuge, 1962)
- Monophorus australicus B.A. Marshall, 1983
- Monophorus erythrosoma (Bouchet & Guillemot, 1978)
- Monophorus fascelinus (Suter, 1908)
- Monophorus monachus (Hervier, 1898)
- Monophorus nigrofuscus (A. Adams, 1854)
-
Monophorus olivaceus (Dall, 1889)
Ornate Triphora
- Monophorus perversus (Linnaeus, 1758)