24 TADOKNA VULPANSER. 



tapering to a fine point, and projcctino- considerably beyond 

 the margin. The lanielhc of the h)wer mandible are much 

 more numerous, and exceedingly delicate, there being nearly 

 two hundred externally. The tongue is fleshy, an inch and 

 ten-twelfths long, with very numerous acicular papillae at the 

 base ; laterally Avith two series of fibrils, larger and stifFer in 

 its basal half, two shorter series above, a medial groove, the 

 tip very thin, concave, horny, somewhat abrupt. 



The trachea, twelve inches in length, is considerably 

 flattened, at first only three-twelfths, but near the lower end 

 four-and-a-half-twelfths in breadth, finally becomes round 

 and contracts to three-twelfths. Several of the rings here 

 unite, and form in front a small bulge, narrower in the middle, 

 and opening into two very thin, long, irregularly-rounded 

 expansions, projecting outwards and backwards, but not 

 meeting behind, that on the right side much larger, its 

 greatest diameter one inch. The number of rings is an hun- 

 dred and thirty-eight, besides six Avhich are united. The 

 bronchi, moderate, and of twenty half rings, come ofi" at the 

 distance of a quarter of an inch from each other. 



The nostrils are oblong, a quarter of an inch in length ; 

 the eyes rather small. The legs are short ; the tibia bare for 

 four-twelfths of an inch ; the tarsus short, compressed, 

 covered Avith small angular scales, and having about twenty 

 anterior scutella. The first toe is very small, elevated, with 

 ten scutella, and a lobiform membrane ; the second with 

 thirty, the third thirty-four, the fourth forty-four scutella. 

 The hind claw very small and curved ; the outer and inner 

 compressed, the third obliquely expanded internally ; the 

 membranes full. 



The plumage is full, soft, blended ; the feathers of the head 

 and upper neck small and silky, of the lower neck and lower 

 parts oblong, and rather abrupt ; the scapulars large and 

 oblong. The wings, which have a rounded knob at the 

 flexure, are long, extend when closed almost to the end of 

 the tail, and are broad and pointed, with twenty-eight quills ; 

 the primaries tapering, the second nearly a quarter of an inch 

 longer than the first; the outer secondaries of moderate 

 breadth, and rounded, as are the inner, Avhich are elongated. 



