VII.] 



THE COMMON FROG. 



109 



was either pressed down, or arranged so as to form a 

 complete retreat. Unfortunately, the Frog soon dis- 

 appeared altogether." 



It is very probable that other functions, as yet 

 unnoticed, may be performed by these members, 

 since, though the observation just above related is 

 the first known observation of the kind, yet the 





Fig. 69. — Deeper Muscles of Outer Aspect of Right Pelvic Limb of Parson's 

 Chameleon : the ilio-peroneal cut reflected. A, adductor ; B, bifceps ; Z", gluteus 

 primus; Z?^, gluteus secundus ; D3, gluteus tertius ; EL, extensor longus digi- 

 torum ; F^ and 7^3, rectus femoris : EC, femoro-caudal ; ED^, flexor longus digi- 

 torum ; ED'', flexor tertius digitorum ; G, gracilis ; GE, gastrocnemius externus ; 

 //'. ilio-peroneal ; E, peroneus ; 6", tibial adductor ; S.I/, semi-niembranosus ; 

 I'^'E, vastus externus ; JC, gluteus maximus ; _;', tendon of femoro caudal. 



manoeuvre recorded is no doubt a constant habit of 

 the animal. 



