ELISHA MITCHELL SCIENTIFIC SOCIETY. 23 



face the fibres of the muscle pass into the quadra- 

 tus lumborum, with which muscle the psoas magnus is 

 blended anteriorly, excepting* that part which arises 

 from the aponeurosis covering- the former. The muscle 

 is inserted on the lesser trochanter of the femur. 



Synonomy. Psoas, S.-D., vol. II, p. 406; psoas 

 mag-nus plus iliacus, M., p. 156;, psoas magnus, G. & 

 T., p. 42. 



The fibres arising from the anterior border of the 

 ilium correspond to Mivart's iliacus. M. is wrong in 

 stating that the muscle arises "from the transverse 

 processes of all the lumbar vertebrae." Gorham and 

 Tower make the same statement. 



Psoas parvus. This muscle may be regarded as a 

 part of the psoas magnus, which has a separate inser- 

 tion. It is indistinguishably united with the p. mag- 

 nus throughout its anterior portion, and thus has with 

 the latter a common origin. It is inserted by a tendon 

 on the rim of the pelvis, at the ileo-pectineal eminence. 



Synonymy. Mipsoas, S.-D., vol. 2. p. 287; psoas 

 parvus, M., p. 156. 



University of North Carolina, 

 February, 1896, 



