46 QUEllQUEDULA, TEAL. 



at first, then nearly straight to the unguis, which is small, 

 obovato-oblong, decurved at the end, the ridge broad and 

 concave at the base, gradually narrowed, convex toward the 

 end, the sides at the base erect, toward the end convex, 

 the edges slightly sinuous, the extremities of the numerous 

 lamellcc rounded or moderately pointed, and projecting a 

 little from the base to two-thirds of the length of the bill, 

 beyond which they are shortened ; the nasal sinus small, 

 elliptical, sub-basal, and near the ridge ; lower mandible 

 very slightly re-arcuate, with the intercrural space long, 

 narrow, and bare, the crura slender, with their sides convex, 

 gradually sloping more outwards toward the end, the unguis 

 obovato-triangular, considerably convex, the upper lamellae 

 little elevated and rounded. 



Mouth rather narrow ; anterior palate concave, with a 

 median prominent line, and on each side a series of very 

 slight oblique lamelke, besides the lateral series. Tongue 

 fleshy, with a deep median groove, a double lateral series of 

 filaments, its breadth nearly equal throughout, the tip thin 

 and broadly rounded. Oesophagus of moderate width, con- 

 siderably enlarged before entering the thorax, and again 

 narrowed ; proventriculus oblong. Stomach a very large, 

 transversely elliptical gizzard, placed obliquely, with very 

 large muscles, thick rugous epithelium, forming two roundish, 

 flat, or slightly concave plates. Intestine very long, rather 

 wide, enlarging toward the coeca, which are very long and of 

 moderate width ; rectum very short. 



Trachea a little enlarged in the furcular space, then nar- 

 rowed ; the inferior larynx with an enlargement formed by 

 several of the lower rings united, and on the left side a 

 rounded or ovate bony expansion of rather large size. 

 Bronchi moderate. 



Nostrils rather small, oblong, in the fore part of the nasal 

 membrane. Eyes small, as are the ears. Legs very short ; 

 tarsus compressed, with small anterior scutella; hind toe 

 very small, Avith a very narrow membrane ; outer toe con- 

 siderably shorter than the third, which is longer than the 

 tarsus ; interdigital membranes emarginate ; claAvs small, 

 slightly arched, compressed, rather acute. 



