241 



1392.] CLASSIFICATION OF BIRDS. 



chial rings. 



1. Ardeidce. 



19 or 20 cervical vertebrae. 



Several pairs of powder-down patches. 



11 primaries.— Cosmopolitan. 



2. Scopidee. 



16 cervical vertebrae. 

 No powder-down patches. 

 10 primaries.— Ethiopian. 



III. Pelargi. 



Cosmopolitan. Waders. 



Neck long, without apteria. Nares pervious. 



Rhampbotheca simple. 



Legs long. Hypotarsus simple. 



Intestinal type IV., telogyrous. 



1. Ciconiida. 



Zoophagous. Nidicolous. 



17 cervical vertebrae. , „, fi. „t 

 Hallux long, toes not webbed. Flexors of type I. 

 Tongue rudimentary. 



Cseca rudimentary. 



Syrinx without tracheo-bronchial muscles. 



2. PJicenieopteridce. 



Tropical. Nidifugous. 



1 8 nr 1 Q cervical vertebrae. 



Hallux si front toes webbed. Flexors of type 



IV. 



Tongue large and thick. 



Cseca functional. 



Syrinx with tracheo-bronchial muscles. 



11 PALCONIFOUMES. 



Cosmopolitan. Nidicolous. Zoophagous. 



SS^p't^tr-Ilbamphotheca simple, with ceroma. 

 Aquin to-cubital. . 



Feet raptorial. Hypotarsus simple telogyrous. C^ca 

 Intestinal convolutions of type iV., leiog^iu 



rudimentary. . 



Coraco-humeral groove indistinct. 



