Acanthogenys Gray, 1840 accepted as Acanthagenys Gould, 1838 (original description)
Acryllium Gray, 1840 (original description)
Aegocephalus Gray, 1840 (original description)
Agrylorhinus Gray, 1840 (original description)
Alectroenas Gray, 1840 (original description)
Amizilis Gray, 1840 (original description)
Androglossus Gray, 1840 (original description)
Anobapton Gray, 1840 (original description)
Anseranus Gray, 1840 accepted as Anseranas Lesson, 1828 (original description)
Anthornis Gray, 1840 (original description)
Aulacoramphus Gray, 1840 (original description)
Avocettes Gray, 1840 (original description)
Brenta Gray, 1840 (original description)
Callaeus Gray, 1840 accepted as Callaeas Forster, 1788 (original description)
Caloenas Gray, 1840 (original description)
Calospiza Gray, 1840 (original description)
Calothorax Gray, 1840 (original description)
Calyptomeina Gray, 1840 accepted as Calyptomena Raffles, 1822 (original description)
Campephilus Gray, 1840 (original description)
Carpococcyx Gray, 1840 (original description)
Casoarius Gray, 1840 accepted as Casuarius Brisson, 1760 (original description)
Ceratorhina Gray, 1840 accepted as Cerorhinca Bonaparte, 1828 (original description)
Cercibus Gray, 1840 accepted as Cercibis Wagler, 1832 (original description)
Chamapetes Gray, 1840 accepted as Chamaepetes Wagler, 1832 (original description)
Cheilodromus Gray, 1840 (original description)
Choemepelia Gray, 1840 (original description)
Chordeilus Gray, 1840 accepted as Chordeiles Swainson in Richardson, 1832 (original description)
Chrysures Gray, 1840 (original description)
Cinclocerthia Gray, 1840 (original description)
Cinclodes Gray, 1840 (original description)
Cladorhynchus Gray, 1840 (original description)
Collocalia Gray, 1840 (original description)
Colluriocincla Gray, 1840 accepted as Colluricincla Vigors & Horsfield, 1826 (original description)
Coquets Gray, 1840 (original description)
Corypha Gray, 1840 accepted as Mirafra Horsfield, 1821 (original description)
Coryphaspiza Gray, 1840 (original description)
Cosmetornis Gray, 1840 (original description)
Cymbilaimus Gray, 1840 (original description)
Dendrocincla Gray, 1840 (original description)
Dendrodromus Gray, 1840 (original description)
Dendrofalco Gray, 1840 (original description)
Elania Gray, 1840 accepted as Elaenia Sundevall, 1836 (original description)
Eleothreptus Gray, 1840 (original description)
Enicocichla Gray, 1840 (original description)
Enicognathus Gray, 1840 (original description)
Eniconetta Gray, 1840 (original description)
Enicornis Gray, 1840 (original description)
Entomyza Gray, 1840 accepted as Entomyzon Swainson, 1825 (original description)
Erana Gray, 1840 (original description)
Falcinellus Gray, 1840 accepted as Plegadis Kaup, 1829 (original description)
Feliceps Gray, 1840 (original description)
Furcuria Gray, 1840 (original description)
Gallina Gray, 1840 (original description)
Glaucium Gray, 1840 (original description)
Glaucopes Gray, 1840 (original description)
Goldana Gray, 1840 accepted as Brachypteryx Horsfield, 1821 (original description)
Goniaphaea Gray, 1840 (original description)
Grygallus Gray, 1840 (original description)
Guanus Gray, 1840 (original description)
Guinetta Gray, 1840 accepted as Tringa Linnaeus, 1758 (original description)
Gymnorhina Gray, 1840 (original description)
Haemorrhous Gray, 1840 (original description)
Heliothrys Gray, 1840 accepted as Heliothryx Boie, 1831 (original description)
Hemicercus Gray, 1841 accepted as Hemicircus Swainson, 1837 (original description)
Hiaticula G.R. Gray, 1840 (original description)
Homoptilura Gray, 1840 (original description)
Hydropsalia Gray, 1840 accepted as Hydropsalis Wagler, 1832 (original description)
Jacobines Gray, 1840 (original description)
Keropia Gray, 1840 (original description)
Ketupu Gray, 1840 accepted as Ketupa Lesson, 1830 (original description)
Lampromorphus Gray, 1840 (original description)
Lanirius Gray, 1840 (original description)
Lomwia Gray, 1840 (original description)
Lophocitta Gray, 1840 (original description)
Lophocorythus Gray, 1840 (original description)
Macropterus Gray, 1840 (original description)
Maximilicus Gray, 1840 (original description)
Megistura Gray, 1840 (original description)
Melaenornis Gray, 1840 (original description)
Melanetta Gray, 1840 accepted as Melanitta Boie, 1822 (original description)
Melierax Gray, 1840 (original description)
Meliornis Gray, 1840 accepted as Phylidonyris Lesson, 1830 (original description)
Microcolaptes Gray, 1840 (original description)
Microcygna Gray, 1840 (original description)
Micronisus Gray, 1840 (original description)
Microscelis Gray, 1840 (original description)
Muscadivores Gray, 1840 (original description)
Muscarinus Gray, 1840 accepted as Mascarinus Lesson, 1830 (original description)
Myiadestes Gray, 1840 accepted as Myadestes Swainson, 1838 (original description)
Nematophora Gray, 1840 accepted as Seleucidis Lesson, 1834 (original description)
Nothera Gray, 1840 accepted as Nothura Wagler, 1827 (original description)
Notherus Gray, 1840 accepted as Nothura Wagler, 1827 (original description)
Nyctactes Gray, 1840 accepted as Nystactes Gloger, 1827 (original description)
Orocetes Gray, 1840 (original description)
Patagona Gray, 1840 (original description)
Petasophora Gray, 1840 accepted as Colibri Spix, 1824 (original description)
Philammus Gray, 1840 (original description)
Philomachus Gray, 1840 (original description)
Pholidus Gray, 1840 accepted as Phodilus Geoffroy, 1830 (original description)
Phrenothrix Gray, 1840 (original description)