Ornithology of Northern Borneo. 15 



Buceros rhinocerosoides (T.) ; Salvad. t. c. p. 37. 

 a. <$ ad. Benkoka, Oct. 6, 1885. 



[Iris dark lake ; bill red and. yellow ; feet dull yellow. 



This large Hornbill is fairly common,, frequenting the 

 high fruit-bearing forest trees. I have seen eleven flying in 

 one flock, when they could be heard a great distance off, the 

 noise they make with their wings being very loud. 



Native name "Sungung."] 



243. Rhinoplax vigil. 



Rhinoplax vigil (Forst.) ; Elliot, Monogr. Bucerot. pi. x. ; 

 Sharpe, Ibis, 1879, p. 248. 



Rhinoplax scutatus (Bodd.) ; Salvad. t. c. p. 88. 

 a. Ad. Benkoka, Oct. 9, 1885. 



[Fairly common in most old forests, frequenting the tops 

 of high trees. It utters a loud deep cry, " Lentodoon " (from 

 which it gets its native name), and then goes off into a fit of 

 laughter, which may be heard at a great distance. 



I saw them on Kina Balu up to 3000 feet. 



The native idea is that the heavy knob on the bill is used 

 for hammering the gutta and gum round the hole when it 

 closes up the female in the nest.] 



244. Anthracoceros convexus. 



Anthracoceros convexus (T.) ; Sharpe, P. Z. S. 1879, 

 p. 329; id. Ibis, 1879, p. 246; Elliot, Monogr. Bucerot. 

 pi. xii. 



Hydrocissa convexa (T.) ; Salvad. t. c. p. 80 ; Sharpe, 

 Ibis, 1877, p, 7, 1879, p. 246. 

 a, b. 6 ? . Labuan, May 28, 1885. 

 c. $ juv, Pulo Gaya Island. 



[Young birds have the bill dull pea-green ; feet dull cobalt ; 

 eye not so dark as the old birds. 



Adults have the bill light yellow, with a black mark on 

 end of casque ; eye lake ; skin at base of bill light blue. 



Common on most small islands near the sea-coast ; I have 

 never met with this Hornbill far inland. It has a curious 

 screaming cry, which is frequently uttered. 



Native name " Lekup."] 



