24 ON THK ANATOMY OF RHINOCEROS SUM ATRENSIS. [Jan. If), 



The followinu; is a tabular statement of the condition of certain 

 muscles in the Rhinoceros and Horse. 



lihinoceros. 



Ext. convia. dig. ... Arises from tibia. 



Horse. 



Arises from between external 

 condyle and trochea of 

 femur. 



Peronei Four separate muscles. Only one muscle. 



Anterior tibial ... Origin by two bends from Forms two separate muscles, 

 tibia. Ins. radial meta- one tendinous arising from 



tarsal and tarsal. femur, the other fleshy 



from tibia. 



Muscles of the Head and Neck (fig. 1 0). 



Fig. 10 illustrates the principal ninscles of the head as seen from 

 the side. 



Fig. 10 may be compared with the woodcut (fig. 97) illustrating 



Fio-. 10. 



Le?,' lab. S 



Dissection of side of face of lihinoceros .sumatrensis. 



Par., parotid gland ; Lcv.lab.s., levator labii siiperioris aloeque nasi ; M., mas- 

 seter; Or6., orbicularis ; P/a^., jDlatysraa ; Z^^., zygomaticus. 



the corresponding muscles in tlie Horse in Chauveau's book, and 

 with plate viii. of Murie's memoir upon the Sumatran Tapir. 



The Zygomatic arises from the zygoma just in front of the 

 anterior edge of the parotid gland ; it is inserted near to the margin 

 of the lower lip at its hinder part close to the angle of the mouth. 

 This muscle is much more important than in the Horse, where it is 

 a small superficial slip arising from the surface of the masseter and 

 inserted at a considerable distance away from the corner of the 



