1869. ] | ' THE MYOLOGY OF MENOPOMA, 269 
perhaps be thus named. It is thickest posteriorly, and arises from 
the whole length of the much prolonged pubo-ischiatic symphysis. 
It is inserted into the postero-peroneal surface of the upper half of 
the tibia. 
The adductor (figs. 10 & 11, A) is a very thick mass of muscle 
which arises from the whole ventral surface of the pelvic shield be- 
tween the acetabulum and the pubo-ischiatic symphysis, and is 
covered by the gracilis. It is inserted into the postero-tibial surface 
of the femur down to the intercondyloid space, where its insertion is 
widest. 
Semitendinosus (figs. 7, 8, 9, 10, & 11, 8S. 7). A muscle I ven- 
ture, suggestively, thus to designate, arises from the postero-external 
angle of the ischium, just at the insertion of the ischio-caudal. It 
is inserted, passing downwards, into the outside of the lower part of 
the flexor longus digitorum, on its plantar surface. A little after 
leaving the ischium it is joined by the before described semimembra- 
nosus. 
Deeper muscles of dorsal or extensor surface of right pelvic limb, the gluteus 
maximus, rectus femoris, and extensor longus being cut and reflected. 
B. Biceps. £. B. Extensor brevis. E. H. Extensor hallucis. 2. L. D, Extensor 
longus digitorum. F.C. Femoro-caudal. G. Md. Gluteus medius. G. Mi. 
Gluteus minimus. G.Mzx. Gluteus maximus. J, Iliacus. Jv. C. Tlio- 
caudal, J.P. Ilio-peroneal. &.F. Rectus femoris. S.M. Semimembra- 
nosus. S. 7. Semitendinosus. 7. A. Tibialis anticus. 
Iliacus (figs. 7, 8,9 & 10,1). This is a very considerable muscle, 
and arises from the anterior part of the internal (abdominal) surface 
of the pubic shield. Curving over the anterior margin of that shield, 
it is inserted into the lower two-thirds of the femur, down to the tibial 
condyle ; but no fibres extend to the tibia itself. 
