DISCUSSION 



185 



sent only what they apparently can do in the wood rat. 

 When a muscle appears to have but slight or doubtful 

 function, the fact is shown by its enclosure in brackets. 

 Rotation, as of the femur, is not indicated, nor can the many 

 slight, associational uses be considered in the present 

 connection. 



long 



direct 



short 



latissimus dorsi 

 (pectoralis profundus anterior) 

 pectoralis profundus posterior 

 pectoralis abdominalis 



major 



indirect 



/ teres 



\ (spinodeltoideus) 



triceps longus 



psoas magnus 



(gluteus superficialis poste- 

 rior) 



iliacus 



gluteus superficialis anterior 

 rectus femoris 



long adductor magnut 



direct-! [ clavo-acromiodeltoideus 



[ short - 



indirect 



adductors 



abductors 



(biceps brachii) 



pectoralis superficialis 

 (pectoralis profundus anterior) 

 subscapularis 

 coracobrachialis 



(spinodeltoideus) 

 infraspinatus 

 teres minor 



(gluteus medius) 

 (gluteus minimus) 

 quadratus femoris 

 adductor longus 

 adductor brevis 



biceps femoris anticus 

 biceps femoris posticus 

 semimembranosus posticus 

 semimembranosus anticus 

 (semitendinosus ?) 



gracilis 

 pectineus 

 adductor longus 

 adductor brevis 

 (adductor magnus) 



gluteus superficialis posterior 

 gluteus maximus 

 gluteus medius 

 gluteus minimus 

 pyriformis 

 gemellus superior 

 gemellus inferior 

 obturator externus 

 obturator internus 

 (biceps femoris anticus) 

 (biceps femoris posticus) 



