VISCOUNT WALDEN ON THE BIRDS OF CELEBES. 



49 



the culmen without exhibiting an erect edge. The cutting-edges of the mandibles 

 are not broken or serrated. In the mature bird the bill measui-es two inches more 

 than in the younger ; yet in the younger bird the mandibles are as high, or are higher, 

 throughout their length than in the fully adult ; or, in other words, in the latter the bill 



Fig. 3. 



Cranorrhinus cassidLv, cf ad. 



Fis. 4. 



Cranorrhinus mssidiw, 5 . 



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

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

 VOL. VIII. — PART II. May, 1872. K 



