338 MANUAL OF PHILIPPINE BIRDS. 



legs and feet slaty black; nails brown to black; bill dark brown, reddish 

 at the tip and around grooves. 



"It seems probable that Everett's Dinagat birds were of this species, 

 but they can, of course, be placed here only provisionally.^' {Bourns and 

 Worcester MS.) 



Genus CEANIOEEHIXUS Cabanis and Heine, 1860. 



Jaw, entire chin, and a large space around eye naked and bright red; 

 base of lower mandible deeply and obliquely chiseled, upper mandible 

 smooth; casque high, greatly compressed, its outline gently rounded 

 behind and abruptly truncated in front; in the female the casque is 

 smooth and has a sharp ridge above, in the male it is somewhat rounded 

 above, and the sides are distorted by deep vertical plications. 



Species. 



a^. Tail white with a black band at tip leucocephalus (p. 338) 



a^. Tail white, stained rufous, the basal third and the tip black... waldeni (p. 339) 



301. CRANIORRHINUS LEUCOCEPHALUS (Vieillot). 

 WHITE-HEADED HOKNBILL. 



Buceros leucocephalus Vieillot, Nov. Diet, d' Hist. Nat. (1816), 4, 592. 



Craniorrhinus leucocephalus Walden, Trans. Zool. Soc. (1875), 9, 165, 

 pi. 27. 



Cranorrhinus leucocephalus Grant, Cat. Birds Brit. Mus. (1892), 17, 378; 

 Sharpe, Hand-List (1900), 2, 65; McGregor and Worcester, Hand- 

 List (1906), 56. 



Camiguin S. (Cuming); Mindanao (Steere, Everett, Koch it Schadenberg, 

 Steere Exp., Bourns & Worcester, Clemens, Goodfellow, Celestino). 



"Adult male. — Occiput, nape, and back of neck deep chestnut; rest of 

 head, neck, and upper chest buff ; tail white, with a terminal black band ; 

 rest of plumage black, glossed with dark bluish green. Naked skin round 

 eye and on chin and throat fiery orange-red ; iris crimson ; feet dull black ; 

 bill and casque deep red; lower mandible crossed at the base by four or 

 more obliquely transverse ridges, the basal one being dark red, the rest 

 whitish and separated from one another by brown grooves; casque with 

 numerous transverse folds. Length, 737 ; wing, 335 ; tail, 244; tarsus, 51. 



"Adult female. — Differs from the male in liaving the plumage of liead 

 and neck dark shining black, and the casque smootli. Length, 597 ; wing, 

 302; tail, 22: tarsus, 46." (Grant.) 



'^'Common in Mindanao. Seems not to occur in Basilau. Frequents 

 the highest trees and feeds on f niit. Eyes red ; legs black ; tops of feet 

 black, bottoms yellowish; bill dark scarlet. A male measures, 711 in 

 length; wing, 319; tail, 232; tarsus, 50; middle toe with claw, 54." 

 (Bourns and Worcester MS.) 



When new the tail-feathers are white but they soon turn light buff. 

 The male is much larger than the female and has a larger casque. A 



