249 



ACCENTOR. CHANTER. 



Bill short, straight, slender, a little broader than high at 

 the base, compressed towards the end : upper mandible with 

 its dorsal outline declinate and nearly straight, the ridge nar- 

 row at the base, then convex and somewhat flattened, and 

 towards the end convex, the sides convex, the edges sharp and 

 direct, the tip slightly declinate, narrow and rather obtuse, the 

 notch very slight ; lower mandible with the angle rather long, 

 narrow, and rounded, the dorsal outline ascending and almost 

 straight, the sides convex, the edges decidedly involute, the 

 tip narrow and rather blunt, the gape-line nearly straight, the 

 edge of the upper mandible being slightly arched towards the 

 end. 



The mouth narrow ; both mandibles deeply concave within, 

 the upper with three prominent lines, the lower with two ; the 

 palate slightly concave ; the posterior aperture of the nares 

 oblongo-linear, edged behind with small papillse. Tongue 

 short, sagittate, narrow, terminated by two acute points. The 

 oesophagus of moderate width, nearly uniform in diameter ; 

 the proventriculus oblong, with short oblong glandules. The 

 stomach rather large, roundish-elliptical, compressed, its la- 

 teral muscles thick, the lower rather distinct, the tendons 

 large, the cuticular lining tough and longitudinally rugous. 

 The intestine of moderate length and width ; the coeca very 

 small, oblong ; the rectum dilated towards the end. 



Nostrils longish, linear, straight, in the lower and fore part 

 of the nasal depression, which is large, rather acute anteriorly, 

 and lilled up by a membrane, which is bare anteriorly and 

 thickened over the nostril. Eyes of moderate size ; the eye- 

 lids feathered towards the margin, their edges bare and crenate. 

 External aperture of the ear large, and roundish. 



The general form is moderately full; the body ovate, of 



