565 



There are four holes for the exit of the anterior spinal roots, and the same number for the 

 posterior ones. The fifth sacral nerve passes out by the notch indicating the termination of 

 the sacrum and the body of the first caudal vertebra. 



3391. The right scapula. 



3392. The left humerus. 



The canal for the medullary artery enters the bone three-quarters of an inch above the 

 condyles, and inclines downwards towards the joint. The intercondyloid space is perforated. 



3393. The coalesced radius and ulna. 3394. The right ilium. 



3395. The left femur. 



The canal for the medullary artery is obliterated. 



3396. The left tibia. 3397. The left fibula. 3398. The left calcaneum. 



3399. The metatarsals answering to the third and fourth of the pentadactyle foot. 



They have coalesced at their proximal ends, to the extent of one-fifth of their whole length. 



3400. A proximal phalanx. 3401. An ungual phalanx. 



3402. The articulated bones of the right fore extremity from the humerus down- 

 wards. 



The inner division of the great tuberosity rises considerably above the head of the bone : 

 the intercondyloid space is perforated. The shafts of the radius and ulna have coalesced. 

 The trapezium and pollex are not developed. The index and minimus digits are both very 

 small. The medius and aunularis are very large, and are chiefly serviceable in progression. 



Hunterian. 



3403. The articulated bones of the right hind extremity from the femur downwards. 



The fifth as well as the first toe are wanting in the hind foot : the second toe is rudimental : 

 the third and fourth are very large, and form a symmetrical pair, showing that the artiodac- 

 tyle structure essentially prevails, although the toes, by the non-development of the fifth, 

 which is present in the other Suidae, are reduced to three in number in the hind foot. 



Hunterian. 



