Ampelid^;.] 



OSTEOLOGrA AVIUM. 



[PlPRINJS. 



Tenths. 

 7 



Length of humerus .... 



Length of ulna :...... 10 



Length of metacarpus 5 



Length of femur 6 



Length of tibia 10 



Length of metatarsus 6J 



Length of sternum 6 J 



Measurements. 



Tenths. 



Breadth of posterior margin of sternum 5 

 Breadth of anterior margin of sternum 4 

 Depth of keel ........ 2 



Length of head 10| 



Breadth of head 5 



Length of pelvis 7 



Breadth of pelvis 6J 



Pipra, Linn. 



Caudata, Shaw. 



Similar to the foregoing, but with pelvis broader, and the sternum with a deeper keel. 

 P. Manacus is also similar. 



Rupicola, Briss. 



Crocea, Bon. 



Cranium flattened from the vertex to the nostrils, where there is a strong transverse 

 groove; orbital septum with a small foramen. Palatine bones very broad for their 

 whole length, their lateral posterior edge with a blunt process slightly pointing 

 outwards. 



Sternum of moderate size, the process to which the ribs are attached very broad. 



Pelvis of moderate size, longer than broad ; obturator foramen large ; the ischiadic 

 narrow. 



Ulna much larger than humerus ; metacarpus long. 



Metatarsi and legs generally rather short, the former with a very slight keel on the 

 hinder edge. 



Measurements. 



Tenths. 



Length of humerus 19 



Length of ulna 24 



Length of metacarpus 11 



Length of femur 14 



Length of tibia 21 



Length of metatarsus 14 J 



Length of sternum 16 



Tenths. 



Breadth of posterior margin of sternum 11 

 Breadth of anterior margin of sternum 9± 



Depth of keel 5 



Length of head 21 



Breadth of head 9 



Length of pelvis 21 



Breadth of pelvis 11 



Illustrations. 

 Sternum, metatarsi, and pelvis, Plate XVI. fig. 2. 



125 



