352 



ELEMENTARY ANATOMY. 



[LESS. 



be reduced to a minimum, as in the Horse ; or be split up 

 into three portions, as in the Iguana ; or into seven small 

 muscles all arising from about the central tarsal ossicle or 

 the end of the fibula, and going to the five metatarsals, as in 

 ChamcEleo Parsonii with other almost endless variations in 

 different forms. 



FIG. 315. MUSCLES OF LEFT HIND LEG OF HYRAX. 



Ta, tibialis anticus ; Eld, extensor longus digitorum (the origin of this muscle 

 ought to have been carried up to the femur); PI, peroneus longus (this muscle 

 ought not to have been made to arise from the femur); Pb, peroneus brevis; 

 S, soleus ; G, gastrocnemius ; P, plantaris. 



The peronei muscles may be much more largely developed 

 than in man. Thus in the Hare four such muscles, not in- 

 cluding the peroneus longus, send tendons to the second, 



