Stkigid^e.] 



OSTEOLOaiA AVIUM. 



[BUBONIC. 



in Otus; brachyotus and the palatine bones rather more curved; interarticular bone 

 articulated with the sphenoid hinder metacarpal bone much arched. 



Bubo, Sibb. 



Maximus, Sibb. 

 Similar to Bubo Bengalensis, except in measurements. The skeleton is in the College 

 of Surgeons. 



Measurements. 



Tenths. 

 Breadth of posterior margin of sternum 18 

 Breadth of anterior margin of sternum 17 



Tenths. 



Length of humerus 59 



Length of ulna ....... 66 



Length of metacarpus 31 



Length of femur . 44 



Length of tibia . 55 



Length of metatarsus 31 



Length of sternum ...... 34 



Depth of keel 9 



Length of head 39 



Breadth of head .29 



Length of pelvis 41 



Breadth of pelvis 20 



Bubo, Sibb. 



Bengalensis, Frank. 



Nasal orifices slightly oval ; the remainder of the cranium much damaged. 



Sternum with a large manubrial process pointing upwards ; the anterior edge of the 

 keel receding, not scolloped out. 



Pelvis with the iliac bones as broad anteriorly as posteriorly. 



Posterior metacarpal bone much arched, flattened at its proximal extremity, and 

 widely separated from the anterior one. 



Measurements. 



Tenths. 



Length of humerus 45 



Length of ulna . 52 



Length of radius . 49 



Length of metacarpus 22 



Length of femur ....... 30 



Length of tibia ....... 45 



Length of metatarsus 25 



Length of sternum . . . * . . . 27 



Tenths, 

 Breadth of posterior margin of sternum 18 

 Breadth of anterior margin of sternum 15^ 

 Depth of keel ....... 5| 



Length of head . . .... 33^ 



Breadth of head 24 



Length of pelvis 34 



Breadth of pelvis 15 



Illustration. 

 Sternum, Plate IV. fig, 9. 



31 



