OSTEOLOGIA AVIUM. 





Cervical. 



Dorsal. 



Sacral. 



Caudal. 



True ribs. 



False ribs. 



Aremtnon semitorquatus . 



11 



7 



9 



6 



6 





Pytylus gnatho 



12 



6 



9 



6 



6 





Saltator caerulescens 



11 



6 



9 



6 



6 



1 



Stephanophorus caeruleus 



11 



6 



9 



— 



6 





Diucopis capistratus 



12 



6 



10 



6 



6 





Lamprotes viridis . 



12 



7 



10 



6 



6 





Tanagra ornata 



11 



6 



9 



6 



6 





Tachyphonus quadricolor 



12 



6 



9 



6 



6 





Nemosia flavicollis . 



11 



6 



9 



6 



6 





Calliste tricolor 



11 



6 



9 



6 



6 





Euphonia aureata . 



12 



6 



9 



6 



6 





Corvus corax 



12 



7 



10 



8 



6 





Corvus corone 



12 



6 



9 



8 



6 





Corvus frugilegus . 



11 



6 



9 



7 



6 





Corvus monedula . 



12 



6 



10 



7 



6 





Pica caudata . 



12 



6 



7 



6 



6 





Coracias gracula 



12 



6 



10 



6 



6 





Nucifraga caryocatactes . 



11 



7 



9 



6 



6 





Cissa thalasina 



12 



6 



9 



6 



6 





Crypsirina Jeucoptera 



12 



7 



10 



8 



6 





Lophocitta galericulata . 



12 



7 



11 



— 



6 





Gymnorhina tibicen 



12 



6 



9 



7 



6 





Neomorpha Gouldii 



13 



6 



11 



7 



6 





Remarks on the Order Insessores. 



There is less difference between the skeletons of the different families constituting 

 this order than in any other ; so much so, that it is almost impossible to point out any 

 well marked characteristics of each, except measurements. 



The Menuridce are distinguished more distinctly perhaps than any others by the 

 claws, the sternum, and the arrangement of the pelvinal bones. 



The genus Pteroplochos has the same form of claw as Menura, but has two foramina 

 on each side of the sternum. 



The Certhiadce may be distinguished from the Menuridce by the form of the sternum, 

 the palatine bones, and the pelvis, and in not having the edge of the orbits 

 recurved. 



The Dendrocolaptinm have the orbital septum nearly entire. 



The Sitiince differ from the Certhince in having the sternal keel deeper, and the 

 Furnarince from all the foregoing by the greater breadth of the pelvis in conjunction 

 with the greater depth of keel. 



The MeliphagidcB may be distinguished from the Certhiadce by the narrowness of the 

 pelvis, the deep indentation down the centre, and the manner in which the ilium over- 

 hangs the ischium, the rami of the furculum being much compressed towards one 

 another, and for a great portion of their length being nearly parallel one to the other ; 

 the manubrial process turned upwards, and the palatine bones with the edges turned 

 downwards. 



y 153 



