24 KANSAS UNIVERSITY QUARTERLY. 
trochanter just mesal to the insertion of the quadratus femoris 
and, bowing outward, extended to the middle of the femur; thus 
the insertion is well separated, especially proximally, from the 
adductor longus. 
Vastus externus; Plate XVI. Figs. 2 and 3, V. E. 
This muscle is much larger than the vastus internus. — It arises 
from the upper half of the shaft of the femur from the antero- 
lateral surface, including the anterior surface of the great trochanter. 
The muscle is tendinous superficially above, and the deep surface 
fuses with the crureus. The muscular fibers converge to the 
lateral margin of the patella and to the lower fourth of the rectus 
femoris. 
Crureus; Plate XVI, Figs. 2, 3 and 4, Cru. 
This muscle is much connected with the vasti, but is, perhaps, 
worthy of individual description. It arises from the anterior sur- 
face of the femur; the area of origin is an irregular triangle, whose 
concave base extends between the supracondylar ridges an inch 
from the condyles.. The origin extends above the middle of the 
shaft and is coterminous proximally with the vastus internus and 
laterally with the vastus externus. The insertion is into the cap- 
sular ligament of the knee and the summit and sides of the patella. 
Although this muscle arises from a large surface it is the smallest 
of the extensor group. 
Soleus; Plates XIV and XV, Sol.; Plate XVI, Figs. 5 and 8, Sol 
I found the soleus to be of medium size, rather flat and narrow, 
being a little more than an inch in breadth in the male raccoons 
and smaller in the female. It was smaller than either head of the 
gastrocnemius, and, of course, much smaller than the whole mus- 
cle. In one of the males the lateral edge of the soleus was fibrous 
and fused with the tendo-Achillis and slip from the biceps for two 
inches above the os calcis. In the other specimens this muscle was 
free to its insertion upon the tendo-Achillis just above the heel. 
Flexor longus digitorum; Plate XV, F. L. D.; Plate XVI, Figs. 5 and8, F 
ioe Dy, 
Besides arising from a narrow strip occupying the proximal half 
or two-thirds of the posterior surface of the tibia, this muscle pre- 
sents an origin from the head of the fibula. The slip from this 
origin passes over the tibialis posticus to join the tibial portion. 
The accessory slips from the long to the short flexors (Plate XV, 
M. S.) presented a variation. Instead of being inserted upon the 
short flexor slips to the first, second and third toes they were in- 
