SYSTEM OF CLASSIFICATION OF ORDERS, SUB- 

 ORDERS AND FAMILIES ADOPTED 

 IN THIS WORK 



CLASS AVES. 

 Sub-Class Ratitae. 



Order RHEIFORMES. 



Family Rheidae — Rheas. 



Sub-Class Carinatae. 



Order TINAMIFORMES. 

 Family Tinamidae — Tinamous, etc. 



Order GALLIFORMES. 

 Suborder Penelopes. 

 Family Cracidae — Currassows and Guans. 



Suborder Phasiani. 



Family Phasianidae — Pheasants. 

 " Meleagridae — Turkeys. 

 " Tetraonidae — Grouse, Ptarmigans, etc. 

 " Odontophoridae — Quails, etc. 



Order Colimibiformes. 

 Suborder Colimibae. 

 Family Columbidae — Pigeons and Doves. 



Order OPISTHOCOMIFORMES. 

 Family Opisthocomidae — Hoatzins. 



Order Ralliformes. 



Family Rallidae — Rails, Gallinules and Coots. 

 " Heliomithidae — Heliomis. 



Order PODICIPEDIFORMES. 

 Family Podicipedidae — Grebes. 



II 



