BUCERIDJL] OSTEOLOGIA AVIUM. [BUCERIK<E. 



the weaker species, such as Buceros fasciatus, the skeleton of which bird would be 

 scarcely distinguishable from that of a Kingfisher if the head were removed, were it 

 not that it has only two broad but shallow fissures on the posterior margin of the 

 sternum. In the larger species considerable differences exist : Buceros jplicatus, for 

 instance, has the ridge well marked where the ischium joins the ilium, and no spine on 

 the posterior margin at that point ; Buceros ahyssinicus has a very slight ridge, and has 

 the metatarsus without the deep channel extending down the front, so distinctly marked 

 in the former species ; the keel of the sternum also is more arched. 



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