380 



VERTEBRATA. AVES. 



of New Holland, (C. NOVCB Hollandice,) was for some 

 time arranged with the Waders. The legs are 

 naked for a considerable space above the heel joint, 

 the hind toe does not touch the ground, and the 

 webs of the feet are much divided. The bill is 

 remarkably short, and the cere covers a large por- 

 tion of the face ; the tail-feathers are sixteen. 



,* the Duck. 



SUMMER DUCK (Anas Sponsa). 



Under this name Linnaeus comprehended in a sin- 

 gle genus, not only the birds before us, but even the 

 Geese and Swans. Restricted as it now is, it com- 

 prises above a hundred species, distinguished from 

 those birds by the bill being at the base of greater 

 depth than width, the upper mandible hooked at 



* Its Latin name. 



