24 ON THE ANATOMY OF RHINOCEROS SUMATRENSIS. [Jan. 15, 
The following is a tabular statement of the condition of certain 
muscles in the Rhinoceros and Horse. 
Rhinoceros. Horse. 
Eat. comm. dig. ... Arises from tibia. Arises from between external 
condyle and trochea of 
femur. 
Peroned” eiase keen Four separate muscles. Only one muscle. 
Anterior tibial ... Origin by two heads from Forms two separate muscles, 
tibia. Jns. radial meta- one tendinous arising from 
tarsal and tarsal. femur, the other fleshy 
from tibia. 
Muscles of the Head and Neck (fig. 10). 
Fig. 10 illustrates the principal muscles of the head as seen from 
the side. 
Fig. 10 may be compared with the woodcut (fig. 97) illustrating 
Bios 10: 
Lev lab.s 
me 
X 
Dissection of side of face of Rhinoceros sumatrensis. 
Pay., parotid gland ; Lev./ab.s., levator labii superioris aleeque nasi; M., mas- 
seter; Orb., orbicularis ; Plat., platysma;, Zyg-, zygomaticus. 
the corresponding muscles in the 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 
