by six perpendicular orange-yellow grooves. Ease of mandible covered by a similar plate with six 

 diagonal orange-yellow grooves, narrower than those on the maxilla. Apical part of bill ap- 

 parently dark red, like the casque. Bare skin around the eye and upper part of throat flesh-colour 

 A broad black line starts from beneath the eye, extends backwards just beyond the ears and 

 follows the lower margin of the bare skin on the throat, becoming broadest in the centre. Rest of 

 head, neck, and underparts buffy white. Abdomen ferruginous ; thighs and upper tail-coverts 

 vent, and rump chestnut-red. Tail deep chestnut, until within two inches of the tip, when it 

 becomes black with a greenish gloss. 



Total length without bill 20 inches, wings 10, tail 9J, bill from eye to point 4, length of 

 casque If, tarsus 1-J-. 



Female. — Entire plumage black, with the exception of the tail, which is like that of the male. 

 Bill similar but smaller. 



I am indebted to the Marquis of Tweeddale for the loan of the specimens here described and 

 figured. 





. . 



*&Bi *Jfc. 





