Bythocytheridae Sars, 1866
Sclerochilus abbreviatus Brady & Robertson, 1869
Sclerochilus aequus Müller, 1894
Sclerochilus antarcticus Müller, 1908
Sclerochilus australiensis Hartmann, 1979
Sclerochilus bradyi Rudjakov, 1962
Sclerochilus centroamericanus Hartmann, 1959
Sclerochilus compressus Müller, 1908
Sclerochilus contortus (Norman, 1861)
Sclerochilus disjunctus Hartmann, 1974
Sclerochilus dubowskyi Marinov, 1962
Sclerochilus eximius Hao, 1988
Sclerochilus gewemuelleri Dubowsky, 1939
Sclerochilus hicksi Athersuch & Horne, 1987
Sclerochilus incurvatus Klie, 1940
Sclerochilus inhambanensis Hartmann, 1974
Sclerochilus iturupicus Schornikov, 1981
Sclerochilus jurasovi Schornikov, 2004
Sclerochilus kerguelensis Schornikov, 1982
Sclerochilus krosensis Schornikov, 1982
Sclerochilus laptevensis Schornikov, 2004
Sclerochilus laptevi Schornikov, 2004
Sclerochilus leizhouensis Gou & Huang
Sclerochilus levis Müller, 1894
Sclerochilus lineatus Chapman, 1919
Sclerochilus meridionalis Müller, 1908
Sclerochilus mukaishimensis Okubo, 1977
Sclerochilus nasus Benson, 1959
Sclerochilus ovatoides Hu, 1984
Sclerochilus piaoyina Hu & Tao, 2008
Sclerochilus reniformis Müller, 1908
Sclerochilus rubrimaris Schornikov, 1980
Sclerochilus rudjakovi Athersuch & Horne, 1987
Sclerochilus schornikovi Athersuch & Horne, 1987
Sclerochilus semirutrens Schornikov, 1981
Sclerochilus subcycloidea (Hu, 1983)
Sclerochilus svalbardensis Hartmann, 1994
Sclerochilus truncatus (Malcomson, 1886)
Sclerochilus (Praesclerochilus) verecundus Schornikov, 1981
Sclerochilus whatleyi Athersuch & Horne, 1987