BIRDS OF TENASSER1M. 103 



This will be seen from the following dimensions, taken from 

 some thirty odd specimens of afjlnis from the various localities 

 above enumerated. 



Males. — Length, 33 to 38 ; expanse, 38 to 45'5 ; tail 13 to 

 14-5; wing, 11-8 to 13. 



Females. — Length, 29'5 to 33 ; expanse, 38*5 to 39 # 5 ; tail, 11*5 

 to 13*8; wing, 11 to 12. 



The measurements of bill and casque of fine specimens are 

 as follows : — ■ 



Male. — Length of casque at top along curve, 7 ; height of 

 casque, 1*75 ; bill from gape straight to point, 6*25 ; greatest 

 depth of the two mandibles, exclusive of casque, 1*75. 



Female. — Length of casque at top along curve, 4*75 ; 

 height of casque, 1*5 ; bill from gape straight to point, 5 ; great- 

 est depth of the two mandibles, exclusive of casque, 1*5. 



In both species it will be observed that the males are 

 larger and. have much larger bills and casques than the 

 females, but there is another difference between the two sexes 

 which is overlooked by Dr. Jerdon, and which I have never yet 

 seen pointed out, although this doubtless may have been done. 



In both sexes the base of the lower mandible is black ; in 

 the female this is followed by a deep red brown patch which is 

 wanting in the male. In the male there is a narrow black 

 band along the commissure not extending to the tip ; in the 

 female this is broader, extends quite to the tip, and thence 

 spreads upwards along the culmen (leaving only a narrow line 

 of yellow on the forward half of the upper mandible uncolored,) 

 and over the whole anterior half of the casque, and very 

 often a considerable portion of the tip of the lower mandible 

 also is black. In the male, the whole of the culmen beyond 

 the casque is white ; a black patch begins at the anterior 

 point of the casque and slopes down obliquely backwards, ex- 

 tending for a short distance on to the upper mandible. 



144 bis.— Ocyceros tickelli, Blyth. (2). 



Thoungyen R. ; Tkoungsheyen Sakan. 



Confined apparently to the dense forests about the base of 

 Mooleyit and the adjacent ranges. 



2*62 and 2*87 lbs — both no doubt very fine birds. 

 The following is according to my views, the synonymy of the two species :— 

 142. — Hydbocissa albibostbis, Shaw. 

 Gen. Zoo!., VIII., 13, 1811 ; ex Le Taill, H. K d'Ois. 

 Nouv. and Bares, 39, t. 14, 1811. 

 ? albicornis, Wilkes, Enc. Lond. Ill, 479, 1808. 

 leuccgaster, Blyth, J. A. S. B., X, 922, 1841 ; XII, 177, 1843. 

 143. — Hydbocissa affinis, Sutton. 

 3. A. S B., XVIII, 802, 1849. 

 ? malabaricus, Gm., S. N. I., 359, 1788. 

 nigralbus, Bodgs. Gr. Zool. Miscl., 1844, 85, sine desCE. 

 coronatus, God-Ami,, J. A. S. B-, XXXIX, 266, 1870, uec, Bodd. 



