1874.] 



MYOLOGY OF PHRYNOSOMA. 



85 



the tendon of the obturator interims. The vastus interims is, as usual, 

 much the smaller, and occupies only the distal half of the femur ; the 



Fig. 5. 



Superficial muscles on the dorsal aspect of the posterior extremity. X 3. 



externus is situated more anteriorly, and the interims more posteriorly. 

 The crureus cannot be separated as a distinct muscle. 



