ORDER PASSERES. 4<17 



Gingi Hornhill. {B. Gingianus.) Son. Second Voy. 

 t. 121. Vaill. 15. 



Cinereous grey, above ; black band beneath the eye ; 

 breast and belly, white ; tail, cuneiform, with two 

 middle feathers rufous grey, tipped with black. 

 Gingi. 



Bifronted Hornhill. (B. Bicornis.) Vaill. 7- the 

 adult female ; Cavatus, Id. 4, is the middle-aged 

 male. Plates 3 and 5 are altered individuals. 



Black with white patch on second quills ; protuber- 

 ance forming a double horn. Philippine Islands. 



Bontian or Indian Hornhill. {B. Hydrocoraw.) Enl. 

 282, the young. Col. 283, adult. Vaill. t. 6. 



Brown ; cheeks and throat, black ; greyish half-collar 

 on neck. Molucca Islands. 



Violaceous Hornhill. {B. Violaceus.) Id. 19. Abys- 

 sinicus. Enl. 779j in the middle age. Vaill. 

 Ap. 230 and 31, adult birds. Vieill. Gal. 191. 



Like B. Monoceros^ but with the three last quills on 

 each side the tail, white. Coromandel. 



Channelled Hornhill. {B. Sulcatus.) Col. 69. 

 {B. Leucocephalus.) Vaill. 



Blackish-green, face ; front of ^eck, whitish ; beneath, 

 reddish ; prominence, channelled longitudinally ; 

 feathers of the head, long, red. Celebes. 



Panayan or Furrowed Hornhill. (B. Panayensis.) 

 Enl. 780, female ; 781, the old male. Vaill. Col. 16, 



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