Lieut. -Col. Tickell on the Hornhills of India and Burmah. 173 



roadstead of Painpator, in the Island of Margarita, is the locality 

 where I found the greatest number together. 



47. SuLA FIBER. Dusky Gannet. 



Occasionally seen among the Windward Islands ; but much 

 more frequently on the coast of Venezuela. 



48. Pelecanus fuscus. Dusky Pelican. 

 Abundant everywhere in the West Indian seas. 



XIII. — On the Hornhills of India and Burmah. 

 By Lieut.-Col. S. R. Tickell. 



(Plate III.) 

 1. Toccus tickelli. (PI. III.) 



Buceros tickelli, Blyth, J. A. S. B. xxiv. pp. 266^ 285, et xxviii. 

 p. 412. 



Dimensions, 2 • — Length 2' 2|" ; spread 3' 1" ; wing 1' ; tail 

 11^", exceeding wing by 7^" ; bill 4^y ; tarsus 1||"; middle 

 toe 1^"; greatest vertical depth of bill and casque 2". 



Form. — As in the smaller Hornhills. Neck a little more plu- 

 mose. A well-developed recumbent blunt crest. Bill and its 

 elevated ridge as in the young of Buceros {Meniceros) bicornis. 

 Edges serrated by erosion, but without hiatus. Culmen for 

 basal half of bill compressed into a keel-like process, rising 

 rather abruptly from forehead, and then inclining downwards 

 and forwards subparallel to the arch of the bill, with which it 

 amalgamates at about 2" from tip, the conjunction becoming 

 more and more abrupt by age, but not exceeding an angle of 

 45° with the arch of the bill. Orbital space bare. Tail pretty 

 long and rounded, centre exceeding outermost rectrices by ]^". 

 For the rest the details are typical, as in B. hirostris. 



Colour, c? & $ . — Iris grey ; brown next pupil. Bill dark 

 horn ; basal half of casque or culminar protuberance dull orange. 

 Orbital skin pale smalt. Legs dark- greenish horn, with pale 

 soles. Head bistre-brown, shafted pale. Upper parts umber- 

 brown, rather dull and opake, with a tinge of olive, and glances 

 of dull green in half-lights. Secondaries and primaries green- 

 ish black, the latter with their outer margins midway, for a short 



