Acanthocystis Bather, 1889 (original description)
Agelecrinus Bather, 1889 (original description)
Anomalocystis Bather, 1889 † (original description)
Apiocystis Bather, 1889 (original description)
Arachnocystis Bather, 1899 (original description)
Aristocystis Bather, 1889 (original description)
Ascocystis Bather, 1889 † accepted as Ascocystites Barrande, 1887 † (original description)
Atelecystis Bather, 1889 † accepted as Ateleocystites Billings, 1858 † (original description)
Dendrocystis Bather, 1889 † (original description)
Deutocystis Bather, 1889 † (original description)
Homocystis Bather, 1889 (original description)
Lapillocystis Bather, 1889 (original description)
Mespilocystis Bather, 1889 accepted as Mespilocystites Barrande, 1887 † (original description)
Neocystis Bather, 1889 (original description)
Orocystis Bather, 1889 (original description)
Pilocystis Bather, 1889 (original description)
Pirocystis Bather, 1889 (original description)
Proteocystis Bather, 1889 (original description)
Trochocystis Bather, 1889 † (original description)