790 AE ETS: 
EXPLANATION OF PLATE XXIX. 
Fic. 35. Side view of occipital and anterior trunk regions of a third specimen. 
The muscle fibres of the muscle segments have been entirely removed, leaving 
the nerves and intermuscular septa in position, but considerably cut. The inter- 
muscular septa of the sternohyoideus are shown in a similar manner. The hori- 
zontal intermuscular septum, in the twelfth muscle segment, has been cut so as 
to show the ventral branch of the spinal nerve of the segment in position. X 1%. 
Fic. 36. Side view of the deeper muscles on the side of the head, the two 
divisions of the adductor mandibulae turned downward and forward. X 1%. 
Fic. 37. The same, the upper end of the hyomandibular, with the levator 
arcus palatini and dilatator operculi, removed. X 1%. 
