1619. The left metacarpus. 



Ki.M). The right femur, tibia, fibula and metatarsus, with the patella. 



1621. The left femur, tibia, fibula and metatarsus, with the patella. 



Tribe DIVRN.C. 

 Genus Pandion. 



1622. The skeleton of an Osprey (Pandioit ossifragvt). 



Of the 19 vertebnr between the skull and cacrum, the MX posterior bear moreable rib*. 

 the last five pairs of which articulate with the sternum : there are two sacral rib* uniting 

 directly with the sternum. The sternum presents two small perforations posteriorly. The 

 superorbital ossicles are preserved articulated to the lacrjmals. The chief characteristic in 

 this skeleton is seen in the great strength of the metatarsi and toes. The metatarsus is tra- 

 versed by three strong, almost equidistant, longitudinal ridges, one anterior and two posterior, 

 the latter intercepting a wide and deep channel for the flexor tendons of the too* : the small 

 metatarsal bone of the strong back-toe is half twisted outwards, forming a fulcrum for the 

 flexor tendons of that toe. The first phalanx of the inner toe is extremely short ; the second 

 characteristically strong : the claw-phalanges progressively decrease in siie as the number of 

 the toe-phalange* increase*. 



Presented by Robert Keate, Esq. 



1623. The skull of the Brown River Osprey (Falco Jtuvidu). Purchased. 



Genus Haliathtr. 



1624. The skeleton of the Pondicherry Sea-Eagle (Haliattur Ponticeriantu). 



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

 the last fire pairs of which articulate directly with the sternum : there are two pairs of sacral 

 ribs which articulate with the sternum. The proximal phalanx of the inner toe has coalesced 

 with the middle one in this species. 



Huntenan. 



Genus Haliaetut. 



1625. The skull of the White-headed, or American Sea- Eagle (JIaltactu* leuco- 

 cepAaliu). Pretexted by Dr. Leack, F.L.8. 



2 R 



