Ammothoa Hodge, 1864 accepted as Ammothea Leach, 1814 (original description)
Asthenothaerus Carpenter, 1864 (original description)
Bryophila Carpenter, 1864 accepted as Philobrya Carpenter, 1872 (original description)
Callocardia A. Adams, 1864 (original description)
Calycella Hincks in Allman, 1864 (original description)
Campaniclava Allman, 1864 accepted as Pandea Lesson, 1843 (original description)
Cardiomya A. Adams, 1864 (original description)
Coilostele Benson, 1864 (original description)
Corynopsis Allman, 1864 accepted as Bougainvillia Lesson, 1830 (original description)
Craspedotropis Blanford, 1864 (original description)
Cyclotopsis Blanford, 1864 (original description)
Cythnia Carpenter, 1864 (original description)
Diplura Allman, 1864 accepted as Hybocodon L. Agassiz, 1860 (original description)
Endopleura A. Adams, 1864 (original description)
Eucosmia Carpenter, 1864 accepted as Eulithidium Pilsbry, 1898 (original description)
Fenella A. Adams, 1864 accepted as Finella A. Adams, 1860 (original description)
Georissa Blanford, 1864 (original description)
Gonothyraea Allman, 1864 (original description)
Haplocochlias Carpenter, 1864 (original description)
Heteractis Allman, 1864 accepted as Euphysa Forbes, 1848 (original description)
Heterocordyle Allman, 1864 accepted as Dicoryne Allman, 1859 (original description)
Hydractinea Allman, 1864 accepted as Hydractinia van Beneden, 1844 (original description)
Hypsorophus Allman, 1864 (original description)
Lagocheilus Blanford, 1864 (original description)
Leiomya A. Adams, 1864 (original description)
Leptomya A. Adams, 1864 (original description)
Leptoscyphus Allman, 1864 (original description)
Monocaulos Allman, 1864 (original description)
Rhinomya A. Adams, 1864 accepted as Rhinoclama Dall & E. A. Smith, 1886 (original description)
Rhizocline Allman, 1864 accepted as Podocoryna M. Sars, 1846 (original description)
Stylactis Allman, 1864 (original description)
Thecodonta A. Adams, 1864 (original description)