1855.] Description of a new species of Hornbill. 285 



Description of a new species of Hornbill, by Capt. S. E. Tickell, 

 Principal Asst. Commr. Tenasserim provinces. 



BlTCEEOS [TlCKELLI, Blyth]. 



Sex — female, nearly adult ? Eastern base of Dauna hills. District 

 of Amherst, Tenasserim provinces. 



Dimensions. — Length 22f in. ; spread 31 in. ; wing 1 in ; tail 11|- 

 in. (beyond wing 7i in.) ; bill 4 T 9 g- in. ; tarsus l|f in. ; m. toe 1^ in ; 

 greatest vertical depth of bill and casque 2 in. 



Details. — Bill resembles with its casque the bill and casque of 

 young B. bieosteis. Edges serrated as if eroded, but meeting 

 throughout the length of bill. Casque compressed into a keel-like 

 process, rising rather abruptly from the forehead, and then inclining 

 downwards and forwards with the arch of the bill, with which it 

 amalgamates at about 2 in. from top. Nostrils opening upwards, and 

 pierced in a flattened ridge. Chin and throat feathered except close 

 to bill. Tail pretty long and rounded, centre exceeding outer 

 feather by If. Eor the rest the details are typical, the form 

 and proportions resembling those of B. bieosteis, the common 

 "Dhunnes" of India. 



Colour. — (Female.) Iris grey, with an inner circle of brown. Bill 

 dark horn, basal half of casque dull orange : orbits nude and dull 

 pale smalt-blue. Legs dark greenish-horn, with pale soles. Head 

 and its blunt occipital crest bistre-brown, the feathers shaftally pale. 

 Upper-parts umbre-brown, dull and opaque, with a slight tinge of 

 olive, and glances of dull green in certain lights. On the remiges this 

 colour darkens, the secondaries and primaries being greenish-black, 

 the latter with their outer margins midway and their tops whitish. 

 Tail, 2 centre feathers as back, with pale tips : the rest greenish 

 black with pale tips. All under-parts rufescent-tawny, brightest on 

 throat, dull and clouded with vinous-ashy below. Auriculars striated 

 bistre, as are sides of neck obscurely. Lining of wings dusky 

 and tawny. 



Erom the written description of the casque and bill of Buceeos 

 galeeitus (Journal As. Soc. for 1845, No. 159, p. 187), I was led 

 to identify the present subject with that species, but am assured 



2 p 2 



