THE MUSCLES OF THE LOWER EXTREMITY. 



239 



" The fibres of this vinculum come off from tlie tendon 

 of the jiexor longus halliicis, and pass downwards to 

 soon merge with the fibres of the tendon of tXia Jiexor 

 jDerforans digitorum profundus at the crossing. 



Fig. 6s tei 



Fig. 65 quat. 



Fig. 6^ quin. 



Fig. 65 ter. — Right foot of Mcgalcevii asiatica, showing an arrangement of the 



plantar tendons. 

 Fig. 65 quat.—^i^h foot of Gallus bankiva. Vn, vinculum running downwards 



from the outer hallucial tendon to the inner digital common tendon. 

 Fig. 65 qioin. — Right foot of Apteryx mantelli. (All three figures copied by the 



author from Garrod. ) 



" The strength and size of the vinculum is different 

 in nearly every group of birds where it is present. In 

 Fig. 65 his, at a, I have shown the position and size of 



