Acanthochitona J. E. Gray, 1821 (original description)
Diodora J. E. Gray, 1821 (original description)
Gymnoplax Gray, 1821 (original description)
Helix (Isthmia) J. E. Gray, 1821 accepted as Vertigo (Isthmia) J. E. Gray, 1821 represented as Vertigo O. F. Müller, 1773 (original description)
Helix (Isthmia) cylindrica J. E. Gray, 1821 accepted as Vertigo pygmaea (Draparnaud, 1801) (original description)
Helix (Zenobia) bimarginata Gray, 1821 accepted as Monacha cartusiana (O. F. Müller, 1774) (original description)
Jacosta J. E. Gray, 1821 accepted as Xerosecta Monterosato, 1892 (original description)
Lepidochitona J. E. Gray, 1821 (original description)
Mitrula Gray, 1821 accepted as Calyptraea Lamarck, 1799 (original description)
Polyplacophora (basis of record)
Syncera J. E. Gray, 1821 (original description)

 Nomenclature

 for Helix (Zenobia) bimarginata Gray, 1821

Validly introduced with a reference to plate 6 figs 31-32 of Draparnaud (1805) [Holyoak & Holyoak 2018] [details]

 Nomenclature

 for Jacosta J. E. Gray, 1821

As type of Jacosta, Gray fixed Helix albella which he attributed to Draparnaud, 1801; the latter did not establish a ... [details]