OR INDIAN BUCEROS. 121 



Black-horned, Bregma Du?mase> with a large 

 double beak, or a large beak surmounted by a horn 

 shaped like the upper mandible, which gives it the 

 appearance of a double beak. The horn is hollow; 

 at the base brown, with a broad edging of black , 

 quite hard; a black mark runs from about one inch 

 from the base to the point of the horn, very irregu- 

 lar in its breadth, in the centre reaches to the junc- 

 tion of the horn with* the upper mandible ; upper 

 and lower mandible serrated, and separate from each 

 other about three inches in the middle of the beak 

 longitudinally ; upper mandible marked with black at 

 its junction with the head, which part is quite hard; 

 immediately below this the lower mandible has a 

 large black mark, which appears on both sides, and 

 joins at the bottom ; joining to this, and covering the 

 base of the lower mandible, is about an inch of white 

 shrivelled skin; between these, at the edge of the 

 mandible, is a small brown spot covered slightly 

 with feathers ; the rest of the beak and horn cream 

 colour, patched with yellow, except the point, which 

 is much whiter ; the nostril placed at a small distance 

 from the head, in the junction of the horn with the 

 beak ; head, neck, back, and coverts of the tail, 

 black ; breast, belly, thighs, and coverts of the 

 vent, white ; scapulars, greater and lesser coverts of 

 the wings, black, varying to a greenish tinge; under 

 coverts of the wings, white ; primaries, white at 

 their base, then black, with three inches of white at 

 their ends ; secondaries, nearly the same ; tertials 

 black ; a few white feathers on the outward edge of 

 the wing, just below the shoulder; tail cuneiform, 



two 



