BuCERlDiE.] OSTEOLOGIA AVIUM. 



Numbering of the Vertebras and Bibs in Omnivoees. 



[BUCERIN^E. 



Cervical. 



Dorsal. 



Sacral. 



Caudal. 



True ribs. 



False ribs. 



Harpactes Reinwardtii. 

 Podargus humeralis .... 



Coracias Garrula 



Eurylaimus Cory don . 

 Trogon melanocephalus 

 JEgotheles cristatus .... 

 Caprimulgus europseus. 



Halcyon capensis 



Alcyone azurea 



Merops ornatus 



Buceros plicatus 



Buceros Pica 



Upupa Epops 



Alcedo ispida 



Buceros fasciatus 



Bucorvus abyssinicus . 



Merops bicolor 



Merops Sonnini 



Merops albicollis 



Trogon anrantius 



Trogon viridis 



Ceryle americana 



Chelonidera tenebrosa . 



Monasa torquata 



Capito Swainsonii 



12 



10 

 11 

 10 

 11 

 10 

 10 

 10 

 12 

 12 

 12 

 12 

 12 

 11 

 11 

 11 

 12 

 12 

 12 

 11 

 11 

 11 

 11 

 10 

 11 



10 



11 



9 



12 



10 

 10 

 10 

 10 

 10 



11 



10 

 10 



9 

 10 

 10 

 13 

 13 

 12 

 12 



9 

 10 

 10 

 11 

 11 

 13 



5 



7 



8 

 7 

 6 

 6 

 6 

 7 

 8 

 7 

 6 

 7 

 6 

 6 

 6 

 6 

 7 

 7 

 7 

 7 

 7 



5 

 5 

 5 

 6 

 5 

 5 

 5 

 4 

 4 

 4 

 5 

 5 

 5 

 5 

 5 

 5 

 5 

 4 

 4 

 4 

 4 

 5 

 4 

 4 

 4 



General BemarJcs on Omnivoees. 



The following, from an examination of the skeletons described, appear to be the 

 distinctive marks of Omnivores : — The maxillary bones covering half or more of the roof 

 of the month. The sphenoid rudimentary, in some instances no part of it being 

 apparent except the interarticnlar portion. The sternum always constricted in the 

 middle, or nearly so, of its lateral edges. The keel very slightly arched. The ischium 

 always extending obliquely outwards and downwards from the plane of the ilium, and 

 there being no distinct ridge to mark their junction, but in general a spine, more or less 

 apparent, projecting backwards ; the ilium in no case projecting over it ; ischium as among 

 Raptores. The pelvis broad and short, and generally with two fissures on its pos- 

 terior angles. The metatarsus with a furrow down the front, more or less deep for its 

 whole length. The rami of the furculum never meet at an acute angle. 



The Trogonidm have the sternum very short and broad, with generally two fissures on 

 the posterior margin, except in one species of Eurylaimus, which has only one ; the 

 sternal fissures are both very broad, the central fissure pointing outwards ; the keel has 

 its anterior edge excavated. The pelvis is extremely short, and very broad. The furculum 

 has a slight process at the junction of its rami, and is, like the coracoids, rather long. 



The Alcedinidw have the sternum rather longer than in Trogonidce, and the fissures 

 on each side pointing directly forwards ; the pelvis is similar to Trogonidce. 



The Buceridw resemble the Kingfishers in the form of the pelvis, particularly among 

 64 



