152 Descriptions of some supposed New, or 



Dimensions. 



Adult. 



Total length 29 inches. 



Wing 1I T *- ,, 



Tarsus , 1 T »- „ 



Hallux ] T V „ 



Gonys 2 T \ „ 



Bill from gape 4^% „ 



Protuberance from base. . . 3 ,, 



From nostril to the tip in a 

 straight line 4 inches. 



From anterior edge of protu- 

 berance tothe tipofthe bill. 2^ ,, 



From base to tip in a straight 

 line 4/j ,, 



Of white portion of the crest 

 from above the eye 3-j^ „ 



Young. 



Total length 23 inches. I Bill from gape 4 inches. 



Wing H-fV »» .. nostril 3 T V ,, 



Tarsus 1 T ' ; „ ' Total length from base 4y> 7 „ 



Hallux 1 T >- „ j White portion of the crest. . 3 „ 



Gonys 2-fr „ 



Buceros Elliotti — New Species. 



This species resembles the last one very closely, but it is 

 much larger, and wants the white bordered crest, otherwise the 

 description I have given of the plumage of B. Malayanus 

 will do for this one; in my only specimen, the bill has evi- 

 dently arrived at maturity, and is perfectly white ; the pos- 

 terior portion of the casque covers a portion of the vertex, and 

 is eight-tenths of an inch higher than the occipital plane, its 

 posterior edge being one and seven-tenths of an inch behind 

 the nostril when measured in a straight line ; a ridge proceeds 

 from the nostril, and marks where the true culmen would be 

 if the casque were absent ; this ridge ends where the culmen 

 begins ; two more ridges run almost parallel to it, and above 

 it, thereby causing two corresponding furrows; a third furrow 

 is formed by the uppermost ridge and the swell of the casque, 

 which commences to bulge above it ; a fourth ridge is thus 

 formed, but, which is much broader and more rounded than 

 the lower ones, and is bounded along its superior edge by a 

 fourth furrow which is the last. The casque becomes compress- 

 ed as it advances on the bill, and is at last narrowed into a 

 point, its anterior edge instead of being perpendicular with 

 the occipital plane, forms with it (supposing the occipital plane 

 to be continued) an obtuse angle, and consequently an acute 



