(Columbidae; Ϯ White-quilled Rock Pigeon P. albipennis) Gr. πετρα petra rock; φασσα phassa pigeon; "A highly interesting Pigeon from the north-west coast, which, as it differs from all the other forms of its family, and is said to inhabit the rocks, I propose to make the type of a new genus with the name of Genus PETROPHASSA. Characteres generici.— Fere ut in Peristera. Alæ autem et rotundatæ sunt et admodum breviores; deest etiam color metallice æneus. Cauda magis rotundata. PETROPHASSA ALBIPENNIS. ... Hab. Western Australia. Allied to the members of the genus Peristera." (Gould 1841); "Petrophassa Gould, Proc. Zool. Soc. London, 1840 (1841), p. 173. Type, by monotypy, Petrophassa albipennis Gould." (Peters 1937, III, 117).