1870. | MYOLOGY OF CHAMLEON PARSONII. 875 
between the distal ends of the gastrocnemii, into the peroneal aspect 
of the plantar ossicle. It has the gastrocnemius internus superficial 
to it, and is itself superficial to the gastrocnemius externus. 
Fig. 18. 






















Inner side of right pelvic limb. 
£. Biceps. £.L. Extensor longus digitorum. £' & E?. Extensores metatar- 
sorum. /. O. External oblique. #! & F?. Rectus femoris. F.D!. Glu- 
teus primus. G. Gracilis. G.E. Gastrocnemius externus. J. Iliacus. 
S.T. Semitendinosus. 7. 4. Tibialis anticus. V.Z Vastus internus. 
The zlio-peroneal (figs. 2, 17, 19, 20, 23, & 24, I. P) arises from 
the outside of the ilium, just behind and more or less beneath the 
origin of the third part of the rectus femoris. Passing distad, and 
greatly expanding, it is inserted outside the leg into the posterior 
margin of the fibula between the peroneus and the tibialis posticus. 
It covers in the great sciatic nerve. 
The iliaeus (figs. 4, 18, 19, 21, & 22, I, I’, I*, I*) is more or 
less divisible into three parts. 
The first part takes origin from the inside of the ilium, below the 
tendon of origin of the internal oblique. 
The second part extends far back, springing from the inside of the 
ischium. 
The third and smallest part arises from just inside the pubis, but 
only extends a very little on the visceral surface of the pelvis. 
These three parts join together, and are inserted together into the 
