PSITTACID^E.] 



OSTEOLOGIA AVIUM. 



[Arin,e. 



Measurements (continued). 



Tenths. 



Length of sternum 42 



Breadth of posterior margin of sternum 1 9 



Breadth of anterior margin of sternum 1 9 



Depth of keel. . . ... . . 11 



Tenths. 

 Length of head 50 



Breadth of head 28 



Length of pelvis 46^ 



Breadth of pelvis 20^- 



Enicogka-THUS, G. R. Gray. 



Leptorhynchus, King. 

 Very similar to Ara, but much smaller and weaker. 



Measurements. 



Tenths. 



Length of humerus 18 



Length of ulna 20 



Length of metacarpus 14 



Length of femur ....... 



Length of tibia 22 



Length of metatarsus 7 



Length of sternum 22 



Tenths. 



Breadth of posterior margin of sternum 12 

 Breadth of anterior margin of sternum 9 



Depth of keel 8 



Length of head 13 



Breadth of head 12 



Length of pelvis 24 



Breadth of pelvis 12^ 



Conurus, Kulil. 



Tiriacula, Bodd. 

 Similar to Ara, but with the bony circle round the orbits not complete ; the sternum 

 longer in proportion to its width, and the anterior edge of the keel carried forward to 

 the end of the manubrial process, the point not so much rounded ; furculum very small, 

 but perfect. 



Measurements. 



Tenths. 



Length of humerus 10 



Length of ulna 12 



Length of metacarpus 8 



Length of femur 10 



Length of tibia 14 



Length of metatarsus 4 



Length of sternum 15 



Breadth of posterior margin of sternum 



Breadth of anterior margin of sternum 



Depth of keel . 



Length of head 



Breadth of head 



Length of pelvis 



Breadth of pelvis 



Tenths. 



7 



5 



5 



15 



15 



74 



