Bythocythere neerlandica Kuiper, 1918 † (original description)
Cythereis hollandica Kuiper, 1918 † accepted as Repandocosta hollandica (Kuiper, 1918) Hazel, 1967 † (original description)
Cythereis polytrema (Brady, 1878) Kuiper, 1918 accepted as Costa polytrema (Brady, 1878) Ruggieri, 1959 (new combination reference)
Cythereis sphaerulolineata (Jones, 1857) Kuiper, 1918 † accepted as Hiltermannicythere sphaerulolineata (Jones, 1857) Aranki, 1987 † (new combination reference)
Cythereis staringi Kuiper, 1918 † accepted as  † (original description)
Cythereis truncata (Reuss, 1850) Kuiper, 1918 † accepted as Cnestocythere truncata (Reuss, 1850) Triebel, 1950 † (new combination reference)
Cythereis unicostulata Kuiper, 1918 † accepted as  † (original description)
Cytheridea lienenklausi Kuiper, 1918 † accepted as Sarsicytheridea lienenklausi Weiss, 1985 † (original description)
Cytheropteron steinmanni Kuiper, 1918 † (original description)
Krithe pernoides (Bornemann, 1855) † (new combination reference)
Krithe pernoides pernoides (Bornemann, 1855) (new combination reference)
Loxoconcha favata Kuiper, 1918 † accepted as  † (original description)
Loxoconcha wanneri Kuiper, 1918 † accepted as Kuiperiana wanneri (Kuiper, 1918) † (original description)
Nesidea cylindracea (Bornemann, 1855) † accepted as Macrocyprissa cylindracea (Bornemann, 1855) † (new combination reference)
Urocythereis staringi (Kuiper, 1918) † accepted as  † (original description)