290 



ized, like that in the Mole, by the strength of its processes and ridges. There is a separate 

 olecranon or ulnar patella : the modified metacarpal and phalangeal bones which support the 

 primaries, or principal feathers of flight, are both long and strong. The bones of the leg are 

 small and slender. There are 17 vertebra between the skull and sacrum, the last six of 

 which bear moveable ribs, and of these the last five pairs are articulated to the sternum. 

 There are 5 caudal vertebra. 



Presented by Charles Stokes, Esq., F.R.S. 



1520. The skeleton of a Humming-bird (Trochilus Kinyii). 



This species is remarkable for the great southern extent of its range. The individual from 

 which the skeleton was prepared was shot by one of the officers of Captain King's circum- 

 navigatory expedition, whilst hovering over flowers during a snow-storm, in Patagonia. 



There are 1 7 vertebrae between the skull and sacrum, the last five of which bear moveable 

 ribs, and of these the last four pairs are articulated to the sternum. There are two pairs of 

 sacral ribs, and 6 caudal vertebrae. 



Presented by Claries Stokes, Esq., F.R.S. 



1521. The skeleton of a Humming-bird, of the genus Trochilus. 



Of the 16 vertebrae between the skull and sacrum, the four posterior ones bear moveable 

 ribs, the last three pairs of which unite with the sternum : there are two sacral ribs. 



Purchased. 



1522. The skeleton of another species of Humming-bird, of the genus Trochilus. 



Of the 16 vertebree between the skull and sacrum, the last four bear moveable ribs, of 

 which the last three pairs are joined to the sternum : there are two sacral ribs. 



Purchased. 



1523. The skeleton of a Humming-bird, of the genus Orthorhynchus. 



Of the 1 5 vertebrae between the skull and sacrum, the four posterior bear moveable ribs, 

 of which the last three pairs unite with the sternum : there are two sacral ribs, the first of 

 which joins the sternum. 



Purchased. 



The three preceding skeletons are suspended under the same glass shade, and demonstrate well the 

 characteristics of the bony fabric of the most diminutive, most active, and most beautiful of birds. 



Genus Caprimidgus. 







1524. The skeleton of the common Goat-sucker (Caprimulgus europceus). 



The sternum has a long and deep keel, with two moderate posterior notches : the pectoral 

 and deltoid processes of the humerus are both well-developed, and the antibrachium, and 



