295 

 154S. The skeleton of the Carrion Crow (Coma corone). 



Of the 19 vertebrae between the tkull and sacrum, the lix posterior bear movrable rib*, 

 the last five pain of which unite with the iterouui : there is one pair of sacral ribs, which 

 job the tucmapophyse* uf the but donal pair. The mastoid if more developed than in tht 

 Hooded specie* of Crow. 



Mtu .SWA 



1549. The skull of the Carrion Crow (Coroiu corotui). Purchased. 



1550. The skeleton of the Hooded Crow (Corviu cortie). 



Of the 'JO vertebre between the skull and sacrum, the seven posterior bear moveable ribs, 

 the last fire pairs of which unite with the sternum : there is one pair of sacral ribs, which 

 almost join the sternum. The postfrontal and mastoid an* moderately developed. A strong 

 ridge is continued down the back part of the metatarsus. 



Mtu. Noutk. 



1551. The skull of the Hooded Crow (Corviu cor*i*). 



Presented by Dr. Leach, F.L.S. 



1552. The skull of the Hooded Crow (Corviu comix). Purchased. 



1553. The skull of a Rook (Corviu friyilegiu). Hwtteria*. 



1554. The bisected skull of a Rook (Corviu frHgileyu*), with the outer table removed, 

 exposing the reticulate union of the walls of the fine cancelli of the diploe along 

 a plane parallel with that table, which union is descrilx-d as a third or inter- 

 mediate table of the skull by the Donor, J. //. Stewart, 



1555. The skull of the Jay (Corviu (Garni**) alandariiu). Hmtlerta*. 



Genus Coccothraiutet. 



1556. The skeleton of the Grosbeak (Coccothrrmttr* comunmu). 



This is remarkable for the tumid development of the bones of the upper and lower beak : 

 the processes answering to the mastoid are unusually advanced ; the postfrontals terminate 

 the superorbital plate, which is slightly bent upwards. The paroccipitals are broad and much 

 produced downwards. The coronoid processes of the lower jaw are unusually developed. 

 The rpisternal process is bifurcate. There are 19 vertebne between the skull and sacrum, of 

 which the last six bear moveable ribs : of these the last fire pairs are articulated to the iter- 



