PlCID^E.] 



OSTEOLOGIA AVIUM. 



[PlClM. 



Melanerpes, Sw. 



Formicivorus, Sw. 

 I have only the head, wing, and leg bones, taken from a skin, which are similar to the 

 preceding. 



Measurements. 



Tenths. 

 Breadth of posterior margin of sternum 

 Breadth of anterior margin of sternum 



Tenths. 



Length of humerus 13 



Length of ulna 16 



Length of metacarpus 8 



Length of femur 



Length of tibia 14 



Length of metatarsus 8 



Length of sternum 



Depth of keel ....... 



Length of head 18 



Breadth of head 8 



Length of pelvis ....... 



Breadth of pelvis 



Centurus, Sw. 



Subelegans, Bon. 



The bones also taken from a skin. The palatine bones not quite so angular as in 

 Gecinus on the external posterior angles. Head more flattened. 



Centurus, Sw. 



Radiolatus, Wagl. 



I have the sternum only of this bird ; it is much broader in proportion to its length 

 than in Gecinus, and has the fissures deeper, narrower, and more oval. 



Measurements. 

 Tenths. 



Length of sternum 12 



Breadth of posterior margin of sternum 9 



Tenths. 

 Breadth of anterior margin of sternum 7 



Subfam. 3. Picin^:. 



Picus, Linn. 



Major, Linn. 



My skeleton of this bird is much damaged. Sternum with the fissures next the keel 

 much larger than the outer ones ; the margins very much curved outwards behind the 

 ribs ; keel deeper in proportion to its length than in Gecinus. 



vol. i. N 85 



