296 



num : there are two pairs of sacral ribs, neither of which directly join the sternum. There 



are 6 caudal vertebrae. 



Mm, South. 



1557. The skeleton of the Grosbeak (Coccothraustes communis). 



There are 1 9 vertebra between the skull and sacrum, the last six of which bear moveable 

 ribs, and of these the last five pairs unite with the sternum : there are two pairs of sacral 

 ribs, which do not directly join the sternum. The sclerotic rings are preserved in this skele- 

 ton. There are 7 caudal vertebrae. 



Purchased. 



1558. The skull of the Grosbeak (Coccothraustes communis). 



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



1559. The skull of the male Green Grosbeak (Coccothraustes Chloris). Purchased. 



1560. The .skull of the female Green Grosbeak (Coccothraustes Chloris}. 



Purchased. 



Genus Loxia. 



1561. The skeleton of the Crossbill (Loxia curvirostra). 



Of the 18 vertebrae between the skull and sacrum, the six posterior bear moveable ribs, of 

 which the last five pairs unite with the sternum : there is one pair of sacral ribs. The upper 

 beak is slightly bent to the left, and the pointed symphysis of the lower jaw is more strongly 

 twisted to the right. The process answering to the mastoid is a vertical ridge, almost equally 

 bisecting the wide temporal fossa : the occipital ridges are unusually well-developed in this 

 small bird. These indications of great muscular power acting upon the head and beak, 

 accord with the known habits of the bird in wrenching out the seeds of the pine-cones, which 

 form its chief and favourite food. The apex of the furculum joins that of the sternum. 



Mus. South. 



1562. The skull of the Crossbill (Loxia curvirostra). 



Presented by Sir Everard Home, Bart., V.P.R.S. 



1563. The skull of the Crossbill (Loxia curvirostra). 



Presented by Sir Everard Home, Bart., V.P.R.S. 



1564. The skeleton of the Virginian Cardinal (Loxia Cardinalis). 



Of the 18 vertebrae between the skull and sacrum, the six posterior bear moveable ribs, 

 the last five pairs of which unite with the sternum : there is one pair of sacral ribs. The 

 base of the mastoid process extends from the tympanic articulation half-way towards the 



