CONTENTS 



Page 



Order Galliformes : Fowllike birds 1 



Key to the suborders and superfamilies of Galliformes 4 



Suborder Galli : Megapodes, Curassows, Grouse, Pheasants 4 



Superf amily Cracoidea : Pigeon-footed Galli 4 



Key to the families of Cracoidea 5 



Family Cracidae : Curassows, guans, and chachalacas 5 



Key to the genera of Cracidae 8 



Genus Crax Linnaeus 9 



Key to the North and Middle American forms of the genus 



Crax 12 



Crax rubra rubra Linnaeus 13 



Crax rubra griscomi Nelson 19 



Genus Penelope Merrem 20 



Key to the North and Middle American forms of the genus 



Penelope 22 



Penelope purpurascens purpurascens Wagler 23 



Penelope purpurascens aequatorialis Salvadori and Festa.. 25 



Genus Ortalis Merrem 28 



Key to the North and Middle American forms of the genus 



Ortalis 30 



Ortalis vetula mccaili (Baird) 31 



Ortalis vetula vetula (Wagler) 34 



Ortalis vetula poliocephala (Wagler) 35 



Ortalis vetula leucogastra (Gould) 37 



Ortalis vetula pallidiventris Ridgway 38 



Ortalis vetula intermedia Peters 39 



Ortalis vetula vallicola Brodkorb 40 



Ortalis vetula plumbiceps (Gray) 40 



Ortalis vetula deschauenseei Bond 42 



Ortalis garrula cinereiceps (Gray) 42 



Ortalis garrula mira Griscom 45 



Ortalis garrula olivacea Aldrich 45 



Ortalis ruficauda ( Jardine) 46 



Ortalis wagleri wagleri (Gray) 47 



Ortalis wagleri griseiceps van Rossem 49 



Genus Penelopina Reichenbach 50 



Key to the races of Penelopina nigra (Fraser) 51 



Penelopina nigra nigra (Fraser) 52 



Penelopina nigra dickeyi van Rossem 54 



Penelopina nigra rufescens van Rossem 54 



Genus Chamaepetes Wagler 55 



Chamaepetes unicolor Salvin 57 



Genus Oreophasis Gray 58 



Oreophasis derbianus Gray 60 



Superf amily Phasianoidea : Grouse, pheasants, turkeys 62 



Key to the American (native and naturalized) families and sub- 

 families of Phasianoidea 62 



VII 



