152 ox THE BIRDS OF CELEBES. [1872. 



latter the bill is prolonged at the expense of its height. In this stage there are no traces of the 

 basal lateral plates. The walls of tlio mandibles are quite smooth, without any indications of 



Fi?. 3. 



Cranorrhintts casskll.v, (S ad. 



Fijr. 4. 



L'ranorrhlnm cassidix, J . 



Tr.Z. S.viii. lateral folds. But the position which is occupied by the lateral plates in older individuals is 

 ''■ "^ ' indicated by a dingy reddish-brown colour. 



In the next stage (fig. 2, p. 151) the bill measures about one inch longer, and has acquired 

 the form which exists in the old bird ; but the cutting-cdgcs arc unbrokoii. The casque is more 

 inflated, apjjcars more detached from the culmcn, and reaches further back on the crown of the 

 head. In front it stands up at a right angle to the cuhneu, and is much compressed. A thin. 



