~ 
1865. ] MYOLOGY OF HYRAX CAPENSIS. 345 
“arising from the whole outer surface and upper margin of the ilium 
as far down as the acetabulum, as also from the sacrum and several 
caudal vertebree. It is inserted into the great trochanter. 
The tensor vagine femoris is thick though small. It arises from 
the anterior inferior spinous process of the ilium, and is inserted into 
the fascia as usual. This muscle does not lie here so superficial as 
ordinarily, but is somewhat wedged in between the glutei and iliacus 
(fig. 11, 7. v.f.). It has been described by Meckel* as the sartorius. 
The psoas magnus is a stout muscle, arising from the fronts of the 
bodies of the last dorsal and all the lumbar vertebrx, and from the 
bases of the trausverse processes of the lumbar vertebrae. Insert 
into the small trochanter (fig. 10, P. m.). 
The psoas parvus has attachments upon the fronts of all the lumbar 
vertebrze, and is inserted by a long tendon into the ilio-pectineal - 
ridge. Its proportion to the psoas magnus seemed to us larger than 
as described by Meckelt. 
The guadratus lumborum is very long and narrow, arising from 
the sides of the bodies of the last twelve dorsal vertebrae and from 
the heads of the ribs, also from the transverse processes of all the 
lumbar vertebre, and from the anterior part of the sacrum. It is 
inserted into the sacro-iliac synchondrosis. 
The ¢éacus is a moderate-sized, laterally compressed muscle, 
arising from the anterior superior spine of the ilium, aud the margin 
between it and the anterior inferior spine; it is inserted into the 
lesser trochanter (figs. 10 & 11, J.). 
The coccygeus arises from the spine of the ilium, and, spreading 
out in a fan-shaped manner, is inserted into the caudal vertebrae 
(fig. 9, C.). 
Although the tail is so extremely rudimentary, yet the pubo-coc- 
cygeus is distinctly developed as a delicate band of muscular fibre 
arising from the pubes behind the symphyses, and inserted into the 
caudal vertebrae. This muscle is not noticed by Meckel. (Fig. 9, P.c.) 
The pyriformis is very closely connected with the gluteus minimus, 
appearing as it were to wrap round it at its lower part; so that the 
line of demarcation is not easily ascertained. It arises from the ven- 
tral surface and outer border of the sacrum, immediately behind the 
sacro-iliae synehondrosis, and is inserted into the great trochanter 
in union with the gluteus minimus, as Meckelt describes. 
The quadratus femoris, as justly observed by Meckel§, is very 
voluminous (fig. 10,Q.7.). It arises from the front part of the 
tuberosity of the ischium, and is inserted into the line between the 
greater and lesser trochanters. 
The gemellus superior extends from the spine of the ischium to 
the trochanteric fossa. 
The gemetlus inferior has the following attachments, viz. from the 
surface of the ischium, near the tuberosity, to the trochanteric fossa 
(fig. 9, G.1.). 
The obturator internus is rather a small muscle, arising from the 
* Loe. cit. p. 399. T Loc. cit. p. 368. 
t Loc. cit. p. 361. § Loe, cit, p. 365. 
Proc. Zoou. Soc.—1865, No. XXIII. 
