308 



the last five pairs of which articulate with the sternum : there is a single pair of sacral ribs, 

 which also join the sternum. This presents the same characters of the dorsal vertebrae, ster- 

 num, and tibia, as are noticed in the preceding skeleton. 



Mus. South. 



Genus Astur. 



1638. The skeleton of the Goshawk (Astur palumbarius). 



Of the 19 vertebrae between the skull and sacrum, the six posterior bear moveable ribs, 

 the last five pairs of which articulate with the sternum : there are two pairs of sacral ribs, the 

 first of which unites directly with the sternum. Not any of the dorsal vertebrae are anchy- 

 losed. 



Hunterian. 

 Genus leracidea. 



1639. The skeleton of an Australian Hawk (leracidea Beriffora). 



Of the 20 vertebrae between the skull and sacrum, the seven posterior bear moveable ribs, 

 the last five pairs of which unite with the sternum : the sacrum bears one pair of ribs, arti- 

 culating also with the sternum. One free dorsal vertebra intervenes between the sacrum and 

 five coalesced dorsal vertebrae. The sternum presents two small perforations posteriorly. 



Mm. Gould. 

 Genus Nisus. 



1640. The skeleton of the Sparrow Hawk (Nisus communis, Cuv.). 



Of the 19 vertebrae between the skull and sacrum, the six posterior bear moveable ribs, the 

 last five pairs of which unite with the sternum : the sacrum bears two pairs of ribs, both of 

 which join the sternum. The metatarsals are relatively longer and more slender in this spe- 

 cies than in the Buzzard. 



Mus. Brookes. 



1641. The skeleton of the Sparrow Hawk (Nisus communis}. 



Of the 19 vertebrae between the skull and sacrum, the six posterior bear moveable ribs, the 

 last five pairs of which articulate with the sternum : there are two sacral ribs, the posterior 

 of which does not join the sternum. 



Mus. South. 



1642. The skeleton of a Sparrow Hawk (Nisus communis). 



Of the 1 7 vertebrae between the skull and sacrum, the six posterior bear moveable ribs, 

 the last five pairs of which are joined to the sternum : there are two pairs of sacral ribs, both 

 of which join the sternum. The right radius and ulna have been fractured, and partially 

 reunited. 



Purchased. 



1643. The skull of the Sparrow Hawk (Nisus communis). Purchased. 



