PERONEAL MUSCLES IN BIRDS. 



Text-fip-. 179. 



1041 



ANCH. 



Peroneal muscles in CJiatma chavaria. 

 Riglit leg, external aspect. Muscle striped : tendon dotted. 



P.LON. Peroneus longus. ANCH. "Anchor": attachment of P. longus tendon 

 to Sustentaculum of Flexor tendons. P.L. III. Slip of P. longus tendon passing 

 across the ankle-joint to fuse with III, tendon of Flexor perforatus of the third 

 toe. 



P.BRE. Peroneus brevis. P.B.I. Tendonof insei-tion of P. brevis passing across the 

 tarsal joint to insertion to proximal end of the tarsus-metatarsus. P.B. 2. Slip 

 of Peroneus brevis tendon, not usuallj' present in birds. 



Tar. Lig. Ligament crossing the tarsal joint, deep of P.L. Ill and superficial to 

 P.B.I. 



Gastr. External head of gastrocnemius muscle. 



Flex. Flexor tendons. 



