THE EARED GREBE. 271 



convex, the dorsal line ascending and slightly convex, the 

 sides sloping a little outwards, the edges direct, the tip nar- 

 row and ascending ; the gape-line slightly rearcuate. 



The oesophagus is seven inches and a-half in length, four- 

 twelfths in width. The proventriculus ovate, ten-twelfths in 

 breadth. The stomach is very large, elliptical, somewhat 

 compressed, two inches in length, an inch and a-half in 

 breadth ; its muscular coat moderately thick, its tendons 

 roundish, the epithelium thick and longitudinally rugous. 

 There is a small pyloric lobe. The intestine is three feet 

 nine inches long, from four-twelfths to two-and-a-half- 

 twelfths in width ; the coeca two inches long, two-twelfths- 

 and-a-half wide; the rectum two inches in length, with a 

 globular cloaca eight-twelfths in diameter. 



The nostrils linear, a twelfth-and-a-half in length ; aper- 

 ture of the eye two-twelfths -and-a-half. The tarsi, toes and 

 claws as in the last species. The plumage very soft and 

 blended, glossy on the upper parts, silky beneath. The fea- 

 thers of the occiput are a little elongated, and form two small 

 tufts. On each side of the head is a tuft of very long, linear, 

 glossy feathers, rising from over and behind the eye; and 

 there is a slight ruff on the cheeks and neck. The wings are 

 small and convex ; the outer three primaries acute, the first 

 longest, and with the inner web abruptly cut out ; the inner 

 primaries rounded ; the secondaries obliquely rounded, with 

 an acumen. The tail a slight tuft of downy feathers, an inch 

 and a half in length. 



The bill is black, tinged with blue. The iris deep car- 

 mine. The feet greyish-black externally, greyish-green in- 

 ternally. The head and upper part of the neck all round, 

 the hind-neck, and the upper parts of the body, and wings, 

 are brownish-black. The lower parts silvery-white, but the 

 sides light red, streaked with black. The primary quills and 

 coverts are greyish-brown, with a large portion of their inner 

 webs white, of which colour also are most of the secondary 

 quills. 



Length to end of tail 13 inches ; extent of wings 22 ; 

 wing from flexure 5^*^ ; tail H ; bill along the ridge ]-^, 

 along the edge of lower mandible 1^^^ ; tarsus 1^ ; hind toe 



