1845.] or little known species of Birds. 187 



We will now leave the Raptores, and commence the varied tribes of 

 Perchers with a new Hornbill : 



Buceros carinatus, nobis. Length about thirty-two inches, of 

 wing thirteen and a quarter, and tail a foot, its outermost feathers 

 an inch shorter than the middle ones : bill to eye five inches, the 

 casque little elevated, at most about three-quarters of an inch, and the 

 depth of bill and casque together two inches and a quarter. Form of 

 the casque truly carinate, like the keel of a boat, rising with a curve 

 from the forehead, extending for two-thirds of the length of the upper 

 mandible, and its anterior portion sloped forward : a lateral ridge ex- 

 terior to the nostrils causes these to open upwards. In one specimen 

 before me, (which I suspect is an old female,) the bill and casque are 

 wholly black ; but in another, with the latter somewhat less develop- 

 ed, (probably an adolescent male,) the bill is yellowish- white, except 

 the basal two-thirds of the lower mandible, and the extreme base of 

 the upper, continued along the tomiae for half its length, and along 

 the upper portion of the casque to near its extremity. In the former 

 specimen, the medial portion of the belly, the vent, and the lower tail- 

 coverts, are dark brownish-albescent ; while in the latter this is con- 

 fined to the vent and lower tail-coverts : but there is no other differ- 

 ence of plumage. The throat is naked, as likewise a large space sur- 

 rounding the eyes. Occiput adorned with a large full crest of length- 

 ened feathers, rounded at the tips, and measuring two inches and 

 three-quarters long, or rather less in the black-billed specimen (or old 

 female ?). General colour black, with green and purple glosses, the 

 edges of the secondaries and tertiaries, and of the lengthened occipi- 

 tal feathers (more or less), whitish-brown — much as in B. gingalen- 

 sis, to which the present species is certainly allied : terminal four and 

 a half to five inches of the tail deep black, the rest brownish-ashy, 

 darkest at base, and paling to its junction with the black. In both 

 specimens the edges of the mandibles retain their original serration, 

 more or less perfectly, which is seldom seen in adult Hornbills. Pro- 

 cured at Malacca by the Rev. F. W. Lindstedt, to whom the Society 

 is indebted for a large and valuable collection of the mammalia and 

 birds of that particularly rich, but little explored, locality. 



The B. comatus, Raffles, Lin. Tr. xiii, 339, would seem to be allied 

 to the above in form of bill, but is evidently distinct. B. malayanus, 

 Raffles, ibid. p. 292, would seem to approximate the adolescent B. 



2 E 



