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The Rectus capitis anticus minor (Pl. XIV. c) is a strong fleshy compressed triangular 
muscle arising from the anterior part of the body of the first four cervical vertebre. 
Ins. Base of occiput. 
The Rectus capitis lateralis (Pl. XI. XIV. d) arises from the upper transverse processes 
of the sixth to the second cervical vertebra inclusive. Ins. Side of the base of the skull. 
C. Muscles of the Tail. 
Levator caude.—Origin. From the posterior and superior extremity of the ischium. 
Ins. Into the spines of the caudal vertebree. 
Adductor caude superior.—This muscle is smaller than the preceding, with which it 
runs parallel ; it rises below from the posterior extremity or tuber of the ischium, and 
is inserted into the transverse processes of the caudal vertebree. 
Adductor caude inferior.—Origin. From the tuber ischii, and the ligament connecting 
this with the posterior extremity of the pubis. Jns. Into the transverse processes of 
the caudal vertebre. 
Depressor caude.—Origin. From the under part of the middle line of pelvis. Ins. 
Into the inferior spines of the caudal vertebre. 
D. Muscles of the Abdomen. 
Obliquus eaternus abdominis (Pl. X1. XIV. e).—Origin. Fleshy, from the second and 
third ribs, and by a strong aponeurosis from the succeeding ribs near the attachment 
of the costal processes, and from those processes. Ins. The fleshy fibres are continued 
from this aponeurotic origin to nearly opposite the ends of the vertebral ribs ; they run 
almost transversely, very slightly inclined towards the pubis, to within half an inch of 
the linea alba, and there terminate, by an almost straight, parallel line, in their aponeu- 
rosis of insertion. ‘The fibres of this aponeurosis decussate those of the opposite side, 
and adhere to the tendinous intersections of the rectus beneath. The aponeurosis from 
the last rib passes to be inserted into a strong ligament extending between the free ex- 
tremities of the ossa pubis, leaving the abdomen behind the last rib, defended only by 
the internal oblique and transversalis. 
Obliquus internus abdominis (Pl. XIV. f).—Origin. From the whole of the anterior 
and outer surface of the pubis ; aponeurotic from the upper part, fleshy for half an inch 
from the lower or ventral extremity : the carneous fibres run longitudinally, and cannot 
be distinctly defined from the intercostales on their outer border, or from the rectus ab- 
dominis on their inner or mesial border, which forms the medium of the insertion of the 
internal oblique. 
Rectus abdominis (Pl. XIV. g).—I give this name to the mesial continuation of the 
preceding muscle, which arises by a strong, flat, triangular tendon (g) trom the lower or 
