• Acanthochiton Herrmannsen, 1846 accepted as Acanthochitona J. E. Gray, 1821
• Acanthochiton (Acanthochites) Risso, 1826 accepted as Acanthochitona J. E. Gray, 1821
• Acanthochiton (Acanthochites) discrepans (T. Brown, 1827) accepted as Acanthochitona discrepans (T. Brown, 1827)
• Acanthochiton (Acanthochites) discrepans var. viridis Pallary, 1902 accepted as Acanthochitona discrepans (T. Brown, 1827)
• Acanthochiton (Eoplax) Ashby & Cotton, 1936 † accepted as Notoplax H. Adams, 1862
• Acanthochiton (Eoplax) adelaidae Ashby & Cotton, 1936 † accepted as Notoplax adelaidae (Ashby & Cotton, 1936) †
• Acanthochiton (Lirachiton) Ashby & Cotton, 1939 accepted as Lirachiton Ashby & Cotton, 1939 † accepted as Bassethullia Pilsbry, 1928
• Acanthochiton (Lirachiton) inexpectus Ashby & Cotton, 1939 † accepted as Bassethullia inexpecta (Ashby & Cotton, 1939) †
• Acanthochiton (Loboplax) Pilsbry, 1893 accepted as Notoplax H. Adams, 1862
• Acanthochiton (Loboplax) stewartiana (Thiele, 1909) accepted as Notoplax mariae (W. H. Webster, 1908)
• Acanthochiton (Notoplax) H. Adams, 1862 accepted as Notoplax H. Adams, 1862
• Acanthochiton (Notoplax) gabrieli Ashby, 1922 accepted as Notoplax gabrieli (Ashby, 1922)
• Acanthochiton (Notoplax) porcina Ashby, 1919 accepted as Bassethullia porcina (Ashby, 1919)
• Acanthochiton (Notoplax) quincunx Leloup, 1981 accepted as Acanthochitona quincunx Leloup, 1981
• Acanthochiton (Notoplax) spongialis Ashby, 1923 accepted as Notoplax speciosa (H. Adams, 1862)
• Acanthochiton (Notoplax) spongialis glauerti Ashby, 1923 accepted as Notoplax glauerti (Ashby, 1923)
• Acanthochiton adansoni (Rochebrune, 1881) accepted as Acanthochitona crinita (Pennant, 1777)
• Acanthochiton aenigma Iredale & Hull, 1925 accepted as Notoplax aenigma (Iredale & Hull, 1925)
• Acanthochiton ashbyi Leloup, 1937 accepted as Acanthochitona mahensis Winckworth, 1927
• Acanthochiton balcombiensis Ashby, 1939 † accepted as Acanthochitona balcombiensis (Ashby, 1939) †
• Acanthochiton bednalli (Pilsbry, 1894) accepted as Acanthochitona bednalli (Pilsbry, 1894)
• Acanthochiton bednalli var. johnstoni Ashby, 1923 accepted as Acanthochitona bednalli (Pilsbry, 1894)
• Acanthochiton brookesi Ashby, 1926 accepted as Acanthochitona brookesi Ashby, 1926
• Acanthochiton casus Ashby & Cotton, 1939 † accepted as Acanthochitona casus (Ashby & Cotton, 1939) †
• Acanthochiton chapmani Ashby, 1925 † accepted as Acanthochitona chapmani (Ashby, 1925) †
• Acanthochiton communis (Risso, 1826) accepted as Acanthochitona fascicularis (Linnaeus, 1767)
• Acanthochiton communis f. barashi Leloup, 1969 accepted as Acanthochitona fascicularis (Linnaeus, 1767)
• Acanthochiton complanatus Hull, 1924 accepted as Acanthochitona complanata (Hull, 1924)
• Acanthochiton coquimboensis Leloup, 1941 accepted as Acanthochitona hirudiniformis (G. B. Sowerby I, 1832)
• Acanthochiton couthouyi Rochebrune, 1889 accepted as Hemiarthrum setulosum P. P. Carpenter, 1876
• Acanthochiton crocodilus (Torr & Ashby, 1898) accepted as Notoplax crocodila (Torr & Ashby, 1898)
• Acanthochiton crocodilus debilior Iredale & Hull, 1925 accepted as Notoplax crocodila (Torr & Ashby, 1898)
• Acanthochiton curiosus Iredale & Hull, 1925 accepted as Notoplax curiosa (Iredale & Hull, 1925)
• Acanthochiton curvisetosus Leloup, 1960 accepted as Acanthochitona curvisetosa (Leloup, 1960) accepted as Leptoplax curvisetosa (Leloup, 1960)
• Acanthochiton discrepans (T. Brown, 1827) accepted as Acanthochitona discrepans (T. Brown, 1827)
• Acanthochiton discrepans var. angustivalva Bergenhayn, 1931 accepted as Acanthochitona fascicularis (Linnaeus, 1767)
• Acanthochiton dissimilis Is. Taki & Iw. Taki, 1931 accepted as Acanthochitona dissimilis Is. Taki & Iw. Taki, 1931
• Acanthochiton drunus Ashby & Cotton, 1939 † accepted as Acanthochitona druna (Ashby & Cotton, 1939) †
• Acanthochiton fascicularis (Linnaeus, 1767) accepted as Acanthochitona fascicularis (Linnaeus, 1767)
• Acanthochiton flebilis Laws, 1950 † accepted as Acanthochitona flebilis (Laws, 1950) †
• Acanthochiton forsythensis Ashby & Cotton, 1939 † accepted as Acanthochitona forsythensis (Ashby & Cotton, 1939) †
• Acanthochiton forsythensis relatus Ashby & Cotton, 1939 † accepted as Acanthochitona forsythensis relatus (Ashby & Cotton, 1939) †
• Acanthochiton foveauxensis Mestayer, 1926 accepted as Notoplax rubiginosa (F. W. Hutton, 1872)
• Acanthochiton foveauxensis var. kirki Mestayer, 1926 accepted as Notoplax rubiginosa (F. W. Hutton, 1872)
• Acanthochiton garnoti (Blainville, 1825) accepted as Acanthochitona garnoti (Blainville, 1825)
• Acanthochiton gatliffi Ashby, 1919 accepted as Acanthochitona gatliffi (Ashby, 1919)
• Acanthochiton heterochaetus Bergenhayn, 1931 accepted as Acanthochitona fascicularis (Linnaeus, 1767)
• Acanthochiton hispidus K. van W. Palmer, 1945 accepted as Acanthochitona crinita (Pennant, 1777)
• Acanthochiton kimberi (Torr, 1919) accepted as Acanthochitona kimberi (Torr, 1912)
• Acanthochiton kimberi yallingupensis Ashby, 1926 accepted as Acanthochitona kimberi (Torr, 1912)
• Acanthochiton macrocystialis Ashby, 1924 accepted as Acanthochitona macrocystialis (Ashby, 1924)
• Acanthochiton mastalleri Strack, 1989 accepted as Acanthochitona mastalleri Strack, 1989
• Acanthochiton maxillaris Ashby, 1919 accepted as Acanthochitona kimberi (Torr, 1912)
• Acanthochiton mayi Ashby, 1922 accepted as Notoplax mayi (Ashby, 1922)
• Acanthochiton minutus Leloup, 1980 accepted as Acanthochitona minuta Leloup, 1980
• Acanthochiton noumeaensis Leloup, 1941 accepted as Leptoplax noumeaensis (Leloup, 1941)
• Acanthochiton oblongus Leloup, 1981 accepted as Acanthochitona oblonga Leloup, 1981
• Acanthochiton pelicanensis Mackay, 1929 accepted as Acanthochitona pelicanensis (Mackay, 1929)
• Acanthochiton penicillatus (Deshayes, 1863) accepted as Acanthochitona penicillata (Deshayes, 1863)
• Acanthochiton peruvianus Leloup, 1941 accepted as Acanthochitona hirudiniformis peruviana Leloup, 1941
• Acanthochiton pilsbryi (Sykes, 1896) accepted as Acanthochitona pilsbryi (Sykes, 1896)
• Acanthochiton pilsbryi var. maughaneanus Ashby, 1919 accepted as Acanthochitona pilsbryi (Sykes, 1896)
• Acanthochiton pilsbryoides Ashby & Cotton, 1939 † accepted as Acanthochitona pilsbryoides (Ashby & Cotton, 1939) †
• Acanthochiton purpuratus Hull, 1923 accepted as Leptoplax wilsoni (Sykes, 1896)
• Acanthochiton retrojectus (Pilsbry, 1894) accepted as Acanthochitona retrojecta (Pilsbry, 1894)
• Acanthochiton retrojectus var. pustulosus Ashby, 1922 accepted as Acanthochitona retrojecta (Pilsbry, 1894)
• Acanthochiton rubrolineatus (Lischke, 1873) accepted as Acanthochitona rubrolineata (Lischke, 1873)
• Acanthochiton sabratus Ashby & Cotton, 1939 † accepted as Acanthochitona sabratus (Ashby & Cotton, 1939) †
• Acanthochiton sagamicus Bergenhayn, 1933 accepted as Acanthochitona achates (A. Gould, 1859)
• Acanthochiton shirleyi Ashby, 1922 accepted as Acanthochitona shirleyi (Ashby, 1922)
• Acanthochiton singletoni Cotton & Godfrey, 1940 † accepted as Acanthochitona singletoni (Cotton & Godfrey, 1940) †
• Acanthochiton sphenorhynchus Iredale & Hull, 1925 accepted as Notoplax sphenorhyncha (Iredale & Hull, 1925)
• Acanthochiton stygma Rochebrune, 1889 accepted as Hemiarthrum setulosum P. P. Carpenter, 1876
• Acanthochiton subrubicundus Leloup, 1941 accepted as Acanthochitona subrubicunda (Leloup, 1941)
• Acanthochiton thackwayi Ashby, 1924 accepted as Acanthochitona thackwayi (Ashby, 1924)
• Acanthochiton trianguloides Ashby & Cotton, 1939 † accepted as Acanthochitona trianguloides (Ashby & Cotton, 1939) †
• Acanthochiton turtoni Ashby, 1928 accepted as Acanthochitona turtoni (Ashby, 1928) accepted as Acanthochitona variegata (Nierstrasz, 1906)
• Acanthochiton turtoni var. tenuigranosus Ashby, 1931 accepted as Acanthochitona variegata (Nierstrasz, 1906)
• Acanthochiton violaceus (Quoy & Gaimard, 1835) accepted as Notoplax violacea (Quoy & Gaimard, 1835)
• Acanthochiton violaceus var. papillo Ashby, 1922 accepted as Notoplax violacea (Quoy & Gaimard, 1835)
• Acanthochiton zealandicus [sic] accepted as Acanthochitona zelandica (Quoy & Gaimard, 1835)
• Acanthochiton zealandicus doubtlessensis Ashby, 1926 accepted as Acanthochitona zelandica (Quoy & Gaimard, 1835)
• Acanthochiton zelandicus (Quoy & Gaimard, 1835) accepted as Acanthochitona zelandica (Quoy & Gaimard, 1835)
• Acanthochiton zelandicus amplificatus Iredale & Hull, 1930 accepted as Acanthochitona zelandica (Quoy & Gaimard, 1835)
• Acanthochiton zelandicus doubtlessensis Ashby, 1926 sensu Leloup, 1981 accepted as Acanthochitona limbata Kaas, 1986
• Acanthochitona J. E. Gray, 1821
• Acanthochitona (Acanthochitona) J. E. Gray, 1821 accepted as Acanthochitona J. E. Gray, 1821
• Acanthochitona (Acanthochitona) flebilis Laws, 1950 † accepted as Acanthochitona flebilis (Laws, 1950) †
• Acanthochitona (Lirachiton) Ashby & Cotton, 1939 † accepted as Lirachiton Ashby & Cotton, 1939 † accepted as Bassethullia Pilsbry, 1928
• Acanthochitona (Lirachiton) inexpectus (Ashby & Cotton, 1939) † accepted as Lirachiton inexpectus (Ashby & Cotton, 1939) † accepted as Bassethullia inexpecta (Ashby & Cotton, 1939) †
• Acanthochitona (Notoplax) H. Adams, 1862 accepted as Notoplax H. Adams, 1862
• Acanthochitona (Notoplax) ashbyi (Laws, 1932) † accepted as Notoplax ashbyi (Laws, 1932) †
• Acanthochitona (Notoplax) mariae (W. H. Webster, 1908) accepted as Notoplax mariae (W. H. Webster, 1908)
• Acanthochitona (Notoplax) rubiginosa (F. W. Hutton, 1872) accepted as Notoplax rubiginosa (F. W. Hutton, 1872)
• Acanthochitona aberrans (Odhner, 1919) accepted as Craspedochiton aberrans (Odhner, 1919)
• Acanthochitona achates (A. Gould, 1859)
• Acanthochitona alisonae Kaas, 1976 accepted as Notoplax alisonae (Kaas, 1976)
• Acanthochitona andegavensis Dell'Angelo, Landau, Van Dingenen & Ceulemans, 2018 †
• Acanthochitona andersoni Watters, 1981 accepted as Americhiton andersoni (Watters, 1981)
• Acanthochitona angelica Dall, 1919