Acarella Cohn, 1866 (original description)
Actinotricha Cohn, 1866 accepted as Oxytricha Bory de Saint-Vincent in Lamouroux et al., 1824 (original description)
Anophrys Cohn, 1866 (original description)
Apsilus Metschnikoff, 1866 accepted as Cupelopagis Forbes, 1882 (original description)
Coscinosphaera Stuart, 1866 (original description)
Helicostoma Cohn, 1866 (original description)
Hemioniscus Buchholz, 1866 (original description)
Lembus Cohn, 1866 accepted as Cohnilembus Kahl, 1933 (original description)
Metacystis Cohn, 1866 (original description)
Placus Cohn, 1866 (original description)