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Genus XII.— CORYTHUS, Cuv. PINE -FINCH. 



Bill short, robust, bulging at the base, conical, acute; upper mandible of 

 the same breadth as the lower, with its dorsal line very convex, the nasal 

 sinus semicircular, the sides convex, the edges sharp, overlapping, gently 

 ascending at the base, then arched, with a slight festoon, the notches obsolete, 

 the tip declinate, acute; lower mandible with the angle semicircular, the 

 dorsal line slightly convex, the back rounded at the base, the sides convex, 

 the edges somewhat inflected, the tip obtuse. Nostrils basal, round, con- 

 cealed by bristty feathers. Head large, roundish-ovate; neck short; body 

 moderately stout; feet short; tarsus short, compressed, with seven scutella; 

 toes stout, the first proportionally large, the lateral nearly equal, the outer 

 adherent at the base. Claws long, moderately arched, compressed, acute, 

 that of the third toe longer than that of the first. Plumage soft, full, rather 

 blended; two tufts of bristl}' feathers at the base of the upper mandible 

 directed forwards. Wings of moderate length, pointed, the first, second, and 

 third, nearly equal. Tail rather long, deeply emarginate. Roof of the 

 mouth concave, with five prominent ridges; tongue deeper than broad, in its 

 distal half oblong, concave, obtuse, and horny; oesophagus dilated about the 

 middle; stomach large, muscular, with the lateral muscles distinct, and the 

 epithelium rugous, intestine long, and rather slender; coeca very small; 

 cloaca oblong. 



