MYOLOGY OF REPTILES. 



241 



the ridge anterior to the outer femoral condyle, and is inserted 

 into the distal phalanx of the hallux and into the proximal phalanges 

 of the other toes. The tibialis anticus, figs. 150, 153, 109, arises 

 from the antero-internal margin of the tibia, and is inserted into 

 the tibial side of the tarsus and first metatarsal. The peroneus, 

 fig. 151, 10, arises from the fore part of the fibula, and is inserted 

 into the cuboid, and fourth and fifth metatarsals. The cligit- 

 extensores breves, figs. 149, 151, in, arise from the dorsal aspect 

 of the second row of tarsals, metatarsals, and proximal phalanges, 

 and are inserted into the ungual phalanges. The extensor proprius 

 hallucis, figs. 152, 153, 112, arises from the lower end of the 

 fibula, and is inserted by a bifurcate tendon into the sides of the 

 first phalanx of the hallux. The abductor hallucis arises from the 

 tendon of the tibialis anticus, and from the first metatarsal, and is 

 inserted into the base of the proximal phalanx of the hallux. 

 The gastrocnemius, figs. 151, 153, iu, has two heads, one, 114 a, 

 from the outer femoral condyle; the other, 114 b, from the outer 

 margin of the tibia, and this receives also the tendon from the 

 semitendinosus : it is inserted into the calcaneum and expanded 

 metatarsal of the fifth digit, and is continued into the plantar 

 fascia. The plantaris, fig. 153, 115, arises above the outer femoral 

 condyle, and coalesces with the soleus, fig. 152, 116, and the digiti- 

 jlexor longus, 117, to terminate in a common aponeurosis, attached 

 to both sides of the tarsus, and dividing, as in fig. 157, U7, to be 

 inserted into the ungual phalanges. The digitrftexores breves, 

 fig. 157, 118, are four in number, arise from the tarsus, and are 



157 



Muscles of hind-foot, Emys Europ&a. xxxvur. 



inserted into the sides of the middle phalanx, and by a slender 

 tendon into the ungual phalanx, of the four outer toes. The 

 tibialis posticus, figs. 152, 158, 119, arises from the inner and back 

 part of the fibula, and expands into an aponeurosis, including a 

 sesamoid, which divides to be inserted into the second row of 

 tarsals, and the metatarsals of the hallux and fifth digits. The 



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