Entocytheridae Hoff, 1942
Uncinocythere allenae (D. G. Hart & C. W. Hart, 1971)
Uncinocythere ambophora (Walton & Hobbs, 1959)
Uncinocythere bicuspide (Rioja, 1943)
Uncinocythere cassiensis C. W. Hart, 1965
Uncinocythere caudata (Kozloff, 1955)
Uncinocythere clemsonella (Crawford, 1961)
Uncinocythere columbia (Dobbin, 1941)
Uncinocythere cuadricuspide (Rioja, 1945)
Uncinocythere dobbinae (Rioja, 1943)
Uncinocythere equicurva (Hoff, 1944)
Uncinocythere ericksoni (Kozloff, 1955)
Uncinocythere holti C. W. Hart, 1965
Uncinocythere lucifuga (Walton & Hobbs, 1959)
Uncinocythere neglecta (Westervelt & Kozloff, 1959)
Uncinocythere occidentalis (Kozloff & Whitman, 1954)
Uncinocythere pholetera (C. W. Hart & Hobbs, 1961)
Uncinocythere saruri Hobbs, 1971
Uncinocythere simondsi (Hobbs & Walton, 1960)
Uncinocythere spathe D. G. Hart & C. W. Hart, 1971
Uncinocythere stubbsi Hobbs & Walton, 1966
Uncinocythere thektura C. W. Hart, 1965
Uncinocythere warreni Hobbs & Walton, 1968
Uncinocythere xania (C. W. Hart & Hobbs, 1961)
Uncinocythere xena D. G. Hart & C. W. Hart, 1971
Uncinocythere zancla Hobbs & Walton, 1963
Uncinocythere zaruri Hobbs, 1971
