GAD WALL TEAL. 61 



inches, then enlarging to six-twelfths, toward the end nar- 

 rowed to two-and-a-half-twelfths, with the tip rounded. 



The trachea, seven inches and a half in length, at first 

 from four to three-and-a-half-twelfths in hreadth, enlarges to 

 five-twelfths, then contracts to three- and-a-half- twelfths ; the 

 lower larynx with an enlargement formed by the union of 

 several of the rings, and on the left side a rounded bony 

 tympanum, the greatest transverse diameter of the whole 

 being an inch and a twelfth. The bronchi of moderate size. 



Nostrils small, elliptical, two-twelfths long. Eyes small. 

 Legs very short ; tibia bare for four-tAvelfths ; tarsus com- 

 pressed, with twenty small anterior scutella, and about 

 twelve outer, the rest reticulated with small angular scales. 

 The first toe very small ; the second much shorter than the 

 fourth, Avhich is a little exceeded by the third ; the first with 

 ten scutella, the second scaly on the first phalanx, and with 

 fifteen scutella on the second, the third with thirty scutella, 

 the fourth thirty-six ; the interdigital membranes crenulato- 

 denticulate, the outer emarginate. The claws are small, 

 arched, compressed, rather obtuse, that of the middle toe 

 little dilated internally. 



The plumage is soft, close, and blended. The feathers on 

 the head short, on the occiput and nape somewhat elongated, 

 on the other parts moderate, ovate, or oblong. The scapu- 

 lars are much elongated, tapering, and pointed. The wing 

 is rather long, narrow, and pointed, Avith twenty-five quills ; 

 the primaries little curved, tapering ; the first a twelfth 

 shorter than the second, the rest rapidly decreasing ; the 

 outer secondaries broad, incurved, and obliquely rounded, 

 the inner elongated and tapering. The tail small, short, 

 rounded, of sixteen stiffish, pointed feathers, of which the 

 medial project a quarter of an inch beyond the next. 



The bill is black, shaded with blue toward the base. The 

 eyes reddish-brown. The feet dull orange ; the webs darker ; 

 the claws dusky. The upper part of the head and a band 

 down the nape, are dusky, variegated with reddish-brown, 

 the tips of the feathers being of the latter colour. Behind the 

 eye are two faint dull-grey streaks, separated by one dotted 

 with reddish. The forehead and cheeks greyish- white, dotted 



