
728 The American Naturalist. [August, 
CLASSIS AVES. 
Order. Suborder, Genus. 
I.—Subclassis SAURURE. 
ARCHORNITHES Archeopterygiformes Archzeopteryges 
I1.—Subclassis ORNITHU RÆ. 
STRUTHIORNITHES Struthioniformes Struthiones 
RHEORNITHES Rheiform Rheæ 
HIPPALECTRYORNITHES Casuariiformes Casuarii 
Æpyornithiformes Æpyornithes 
Palamedeiformes. la 
Anseriformes Gastornithes 
Anseres 
Enaliornithes 
Hesperornithes 
Colymbo-Podicipites 
Phænicopteri _ 
i Cirkin Pelargo-Herodii 
S 
PELARGORNITHES - ¢ Podicipitiformes 

Procellariiformes 
Aptenodytiformes 
Aptenodytes 
- Ichthyornithiformes 
Ichthyornithes 
Laro-Limicolæ 
CHADRAORNITHES Charadriiformes 
arr 
Otides 
Gruiformes ERA ygæ 
Ralliformes Fulicarize 
emipodii 
Apterygiformes Apteryges 
ALECTORORNITHES Crypturiformes Crypturi 
iformes Galli 
Columbiformes f Foren tes 
umbee 
Psittaciformes Psittaci 
í Coccygiformes Coccyges 
Galbulz 
Pico-Passeriformes 
Halcyoniformes 
CORACORNITHES 4 { 

' : Coraciiformes 



