998 Proceedings of the Asiatic Society. [Aug. 



Himalaya, also the hill ranges of Assam, and of Munneepore. I have retained 

 an adult male and female, from Munneepore, presented by Capt. Guthrie : 

 and a young male, presented by B. H. Hodgson, Esq. 



The two next, with certain other species, as B. cassidix of Celebes and the 

 Moluccas, and B. ruficollis of New Guinea, are very closely allied together. 

 They have a peculiar wreathed or plaited casque, flat or a little bulged in some, 

 more inflated in others : and the females are wholly black with a white tail ; 

 the males having the head and neck either uniform rufous (as in B. ruficollis), 

 or the occiput and nape, with median line of the crown, are deep maronne, 

 the sides of the head and front of the neck being yellowish-white. 



16. B. pusaran, Raffles: B. ruficollis apud nos, XII, 176: described in 

 XII, 990. Size of B. rhinoceros j with the base of both mandibles trans- 

 versely ridged in adults : in the full grown young, these lateral ridges of the 

 beak do not appear till after three or four corrugations are exhibited on 

 the casque, prior to which the bill much resembles that of B. nipalensis of 

 corresponding age, except that the bulge in place of the casque is more 

 decided.* Inhabits Sylhet, Arracan, the Tenasserim provinces, the Malayan 

 peninsula, and Sumatra. We have two adult males, from Arracan ; presented 

 by Capt. Phayre : adult female, and young male, from Malacca, presented 

 by E. Lindstedt, Esq. : and an adult male, with unusually flat casque (de- 

 scribed in XII, 991) ; presented by J. Middleton, Esq. 



17- B. plicatus, Latham, Shaw (nee Drapiez, which is B. ruficapillus, 

 Vieillot) : B. obscurus, Gmelin ; B. subruficollis, nobis, XII, 177 : described 

 in XII, 990. Resembles the last, but is smaller, with never any lateral ridges 

 to the mandibles : the gular skin is said to be blue, instead of yellow as in 

 the other. I have only seen it from Arracan and the Tenasserim provinces, 

 in which latter territory it would seem to be very common. We have a male 

 from Arracan, presented by Capt. Phayre ; a Tenasserim male, procured by 

 the late Dr. Heifer ; and a Tenasserim female, presented by the Rev. J. Barbe. 



The last upon the list is the most remarkable of all the oriental Hornbills : 

 having a short bill, but little curved, surmounted by a moderately high 

 casque, tolerably broad, and abruptly truncate in front, where it presents a 

 very considerable thickness of massive bone ; the throat, neck, and interscapu- 

 lar region are quite naked ; and the middle tail-feathers are greatly elongated, 

 being twice as long as the rest. 



18. B. galeatus, Lin. : vide XII, 997. Size of B. rhinoceros j and colour 

 brownish-black, with white belly, wing-tips, and shoulders of wings internally ; 

 tail of a buff or drab-white, each feather having a subterminal black band ; 

 the crested occiput black, with ferruginous on the sides of the head : beak 

 * For notices of the mode of growth and successive replacement of these wreaths 

 and ridges, vide XII, 990, 992. 



