326 ALUS. [Vol. XVIII. 



EXPLANATION OF PLATE XL 



Fig. 60. The same as Fig. 59; with the levator muscles of the arches all 

 cut near their insertions. X 3. 



Fig. 61. Internal, or mesial view of the right eyeball, with its asso- 

 ciated muscles and nerves. X i^. 



Fig. 62. Lateral view of the anterior muscle segments of the trunk, the 

 muscle fibers all removed so as to show the septa and the related spinal and 

 occipital nerves. X 4. 



Fig. 63. Dorsal view of the floor of the cranial cavity. X 2^. 



