The Muscles 129 



flexor digltorum longus muscle. It divides into 

 three bellies for the second, third and fourth toes. 

 The first two are pierced by the above-mentioned 

 tendon of the flexor digitorum longus and are in- 

 serted on the next to last phalanx of the second and 

 third toes; the third, on the contrary, is inserted 

 on the claw joint of the fourth toe and is not per- 

 forated; there is no tendon to the fourth toe from 

 the flexor digitorum longus muscle. 



Extensor Hallucis Proprius (Plate V., Fig. 3) 

 (Kurzer gemeinschaftlicher Zehenstrecker, Exten- 

 sor hallucis). This muscle springs by a short, 

 fiat, fairly strong tendon from the outer dorsal 

 border of the distal half of the fibula. It is in- 

 serted: (i) on the proximal half of the first meta- 

 tarsal bone, (2) a second much weaker part is 

 united with the tendon of insertion of the tibialis 

 anticus extensor longus digitorum to the first 

 metatarsal bone. 



The Tail Muscles 



The muscles of the tail have, as shown by 

 Gadow, the character of the primitive body muscles, 

 with their primitive metameric division, fairly 

 plainly preserved. This musculature is arranged 

 in four rows of trumpet-shaped cones, one project- 

 ing into the other, by which arrangement each 

 metamere exhibits a transverse zigzag line of four 

 anteriorly and three posteriorly directed points. 



