Leptochitonidae Dall, 1889
Leptochiton aequispinus (Bergenhayn, 1933)
Leptochiton africanus (Nierstrasz, 1906)
Leptochiton alascensis (Thiele, 1909)
Leptochiton albemarlensis A.G. Smith & Ferreira, 1977
Leptochiton algesirensis (Capellini, 1859)
Leptochiton alveolus (Lovén, 1846)
Leptochiton americanus Kaas & Van Belle, 1985
Leptochiton amsterdamensis Kaas & Van Belle, 1990
Leptochiton andamanicus (E.A. Smith, 1906)
Leptochiton angustidens Sigwart & Sirenko, 2012
Leptochiton arcticus (G.O. Sars, 1878)
Leptochiton asellus (Gmelin, 1791)
Leptochiton assimilis (Thiele, 1909)
Leptochiton ater Saito, 1997
Leptochiton badius (Hedley & Hull, 1909)
Leptochiton batialis Sirenko, 1979
Leptochiton bednalli (Torr, 1912)
Leptochiton bedullii Dell'Angelo & Palazzi, 1986
Leptochiton belknapi Dall, 1878
Leptochiton benthedi (Leloup, 1981)
Leptochiton bergenhayni Saito, 2011
Leptochiton binghami (Boone, 1928)
Leptochiton boettgeri Sulc, 1934
Leptochiton boucheti Sirenko, 2001
Leptochiton cancellatus (Sowerby, 1840)
Leptochiton cancelloides Kaas, 1982
Leptochiton capricornicus (Iredale & Hull, 1925)
Leptochiton chariessa (Barnard, 1963)
Leptochiton cimicoides (di Monterosato, 1879)
Leptochiton clarki Sigwart & Sirenko, 2012
Leptochiton collusor (Iredale & Hull, 1925)
Leptochiton columnarius (Hedley & May, 1908)
Leptochiton compostellanum Carmona Zalvide & Urgorri, 1999
Leptochiton consimilis Sigwart & Sirenko, 2012
Leptochiton curvatus (Carpenter MS, Pilsbry, 1892)
Leptochiton darioi (Righi, 1973)
Leptochiton deecresswellae Anseeuw & Terryn, 2002
Leptochiton deforgesi Sirenko, 2001
Leptochiton denhartogi Strack, 2003
Leptochiton dentiens
Leptochiton diomedeae Berry, 1917
Leptochiton dispersus Kaas, 1985
Leptochiton dykei Sigwart & Sirenko, 2012
Leptochiton fairchildi (Iredale & Hull, 1929)
Leptochiton finlayi (Ashby, 1929)
Leptochiton foresti (Leloup, 1981)
Leptochiton fuliginatus (Reeve, 1847)
Leptochiton gascognensis Kaas & Van Belle, 1985
Leptochiton geronensis Kaas & Van Belle, 1985
Leptochiton gloriosus Kaas, 1985
Leptochiton habei Saito, 1997
Leptochiton hakodatensis (Thiele, 1909)
Leptochiton hirasei (Is. & Iw. Taki, 1929)
Leptochiton hiriensis Schwabe & Lozouet, 2006
Leptochiton incongruus (Dall, 1908)
Leptochiton inquinatus (Reeve, 1847)
Leptochiton intermedius (von Salvini-Plawen, 1968)
Leptochiton internexus
Leptochiton japonicus (Thiele, 1909)
Leptochiton juvenis (Leloup, 1981)
Leptochiton kaasi Sirenko, 1990
Leptochiton kerguelenensis Haddon, 1886
Leptochiton kerguelensis Haddon, 1886
Leptochiton kurnilatus Kaas, 1985
Leptochiton latidens (Bergenhayn, 1933)
Leptochiton laurae Schwabe & Sellanes, 2010
Leptochiton leloupi Kaas, 1979
Leptochiton lineatus (Nierstrasz, 1905)
Leptochiton liratellus (Iredale & Hull, 1925)
Leptochiton liratus (H. Adams & Angas, 1864)
Leptochiton litoreus (Iredale & Hull, 1925)
Leptochiton longisetosus Sigwart & Sirenko, 2012
Leptochiton longispinus Saito, 2001
Leptochiton lukini Sirenko, 1990
Leptochiton matthewsianus (Bednall, 1906)
Leptochiton medinae (Plate, 1899)
Leptochiton meiringae Kaas, 1985
Leptochiton mestayerae (Iredale, 1914)
Leptochiton micropustulosus Kaas, 1994
Leptochiton muelleri Sirenko & Schwabe, 2011
Leptochiton nexus Carpenter, 1864
Leptochiton niasicus (Thiele, 1906)
Leptochiton nierstraszi (Leloup, 1981)
Leptochiton norfolcensis (Iredale & Hull, 1912)
Leptochiton odhneri (Bergenhayn, 1931)
Leptochiton okamurai Saito, 2001
Leptochiton oldroydi
Leptochiton otagoensis (Iredale & Hull, 1929)
Leptochiton pagenstecheri Pfeffer, 1886
Leptochiton pepezamorai Carmona Zalvide, Urgorri & Garcia, 2004
Leptochiton pergranatus Dall, 1889
Leptochiton permodestus Kaas, 1985
Leptochiton perscitus Kaas, 1991
Leptochiton philippinus (Leloup, 1981)
Leptochiton pseudogloriosus Strack, 1991
Leptochiton puppis (Hull, 1923)
Leptochiton rarinota (Jeffreys, 1882)
Leptochiton rarinotus (Jeffreys, 1883)
Leptochiton rissoi (Nierstrasz, 1905)
Leptochiton rugatus (Carpenter in Pilsbry, 1892)
Leptochiton saitoi Sirenko, 2001
Leptochiton samadiae Sigwart & Sirenko, 2012
Leptochiton sarsi Kaas, 1981
Leptochiton scabridus (Jeffreys, 1880)
Leptochiton schwabei Sigwart & Sirenko, 2012
Leptochiton seishinmaruae Saito, 1997
Leptochiton setigera (Nierstrasz, 1905)
Leptochiton sperandus (Iredale & Hull, 1925)
Leptochiton subantarcticus (Iredale & Hull, 1930)
Leptochiton surugensis Saito, 1997
Leptochiton sykesi (Sowerby Iii, 1903)
Leptochiton tenuidontus Saito & Okutani, 1990
Leptochiton tenuis Kaas, 1979
Leptochiton textilis (Powell, 1937)
Leptochiton thalattius Kaas & Van Belle, 1985
Leptochiton thandari Sirenko, 2001
Leptochiton torishimensis (Wu & Okutani, 1984)
Leptochiton troncosoi Carmona Zalvide, Urgorri & Garcia, 2004
Leptochiton vanbellei Sirenko, 2001
Leptochiton vaubani Kaas, 1991
Leptochiton vietnamensis Sirenko, 1998
Leptochiton vitjazae (Sirenko, 1977)
Leptochiton xanthus Kaas & Van Belle, 1990
Terenochiton erratus Hull, 1923
Terenochiton iscus Cotton & Weeding, 1939