The =serratus anticus= arises from the median raphé of the neck and the
first six or seven thoracic spines, and is inserted into the second to
the ninth ribs. It is well developed. The =serratus posticus=—much
weaker—arises on the lumbo-dorsal fascia, and is inserted into the last
three or four ribs. Thus one or two ribs intervene between the two.
The =transversalis costarum= (Iliocostalis) is well developed, and
extends from the ilium to the sixth, fifth, or fourth cervical vertebra.
The =longissimus= resembles that of the other animals, but the spinalis
et semispinalis separates clearly at the sixth or seventh thoracic
vertebra. It is inserted into the articular and spinous processes of the
last six cervical vertebræ. It has no depression in the lumbar region
for the gluteus medius.
The =intertransversales= are fleshy, as in the ox.
The =interspinales= are distinct, especially in the lumbar region.