a^rt.o'^c"**— * 





A 



Fig. II. — The superficial muscles of the frog's left hind-limb. 

 A : from the preaxial surface ; B : from the postaxial surface. 



AB, adductor brevis ; AM, adductor magnus; B, biceps; c, cloacal 

 aperture ; EC, extensor cruris ; F, distal end of femur ; FT, tendon of 

 flexor tarsi ; G, gastrocnemius ; GL, glutaeus ; P, peroneus ; PY, pyri- 

 forn^is; RA, rectus anticus femoris ; Rl, rectus internus major ; 

 RN, rectus internus minor; S, sartorius; SM, semimembranosus; 

 TAtriceps extensor femoris ; TA, tibialis anticus ; TF, tibio-fibula ; 

 TP, tibialis posticus ; VE, vastus externus ; VI, vastus internus. 



