838 



ME. r. E, BEDDARD ON THE 



[Dec. 3, 



near to the origin, for the emergence of the anterior half of the 

 double-headed semitendinosus. In Pi])a the adductor in question 

 arises by two distinctl}'^ separate heads of origin ; the two bellies 

 do not unite even at their attachment, where, however, they are 

 naturally contiguous, though not in any way fused to form a common 

 insertion. The anterior part of the muscle arises by a flat tendon 



Fig. 4. 



Thigh-muscles of Pipa. 



1, adductor magnus ; 2, semimembranosus ; 3, 4, semitendinosus ; 

 5, 6, recti interni. 



of considerable length ; the second part of the muscle lies below 

 and behind the first ; it has a completely fleshy origin ; it is chiefly 

 hidden on a superficial view by the anterior part of the semi- 

 tendinosus. The first part of the muscle is attached only to the 



