DESCRIPTION OF PLATES. 479 



Fig. 9. 



Between extreme points of anterior articular surfaces, 7'8 in. Height, 7'7 in. 



Fig. 10. 



Between extreme points of anterior articular surfaces, 10'4 in. Height, 10' in. 

 Length antero-posterior of siiperior arch, 3'6 in. Length antero-posterior of 

 inferior arch, 3'1 in. 



Fig. 11. 



Between extreme points of anterior articular surfaces, 9'2 in. Height, 6'9 in. 

 Antero-posterior of superior arch, 2'8 in. Antero-posterior of inferior arch, 

 2-1 in. 



Fig. 12. — Basilar process of occipital bone with condyles and foramen 

 magnum of a Proboscidean. 



Between extreme points of occipital condyles, 10-0 in. Vertical diameter of 

 condyle, 4'5 in. Transverse diameter of foramen magnum, 3-6 in. Vertical 

 diameter of foramen magnum, 3-1 in. 



Plate XL VII. 



Axes and other vertebrse of Proboscidea. 



Figs. 1 and 1 a. — Axis. 



Length of body inferiorly, including the odontoid, 6-0 in. Breadth of body 

 posteriorly, 6'5 in. Height of tlie posterior surface of body, 5'1 in. Height 

 of spinal canal, 2'6 in. Breadth of spinal canal, 2'2 in. Height of upper surface 

 of spine from inferior surface of the body, posteriorly, 10"6 in. Antero-posterior 

 diameter of spinal platform, 4'5 in. 



Figs. 2 and 2 a. — Axis. 



Length of body inferiorly, including the odontoid, 7"4 in. Breadth of body 

 posteriorly, 6'8 in. Height of posterior surface of body, 6'3 in. Height of spinal 

 canal, 2*8 in. Breadth of spinal canal, 2-8 in. Height of upper surface of spine 

 from inferior surface of the body posteriorly, IS'S in. Antero-posterior diameter 

 of spinal platform, 5'3 in. Between extreme points of transverse processes, 12- in. 



Figs. 3 and 3 a. — Axis. 



Length of body, 4-6 in. Breadth of body posteriorly, 4'5 in. Height of body, 

 4'5 in. 



Figs. 4 and 4 a. — Axis. 



Length of body, 6'8 in. Breadth of body posteriorly, 6'3 in. Height of body, 

 6-7 in. 



Figs. 5 and 5 a. — Axis. 



Length of body, 6'4 in. Breadth of body posteriorly, 5-5 in. Height of body, 

 6-3 in. 



Figs. 6 and 6 a. — Axis. 



Length of body, 4-0 in. Breadth of body posteriorly, 4-4 in. Height of body, 

 3-6 in. 



Figs. 7 and 7 a. — Axis. 



Length of body, 6'3 in. Breadth of body posteriorly, 7'0 in. Height of body, 

 6-0 in. 



Figs. 8 and 8 a. — Axis. 



Length of body, 5-6 in. Breadth of body posteriorly, 6-4 in. Height of body, 

 5'5 in. 



Figs. 9 and 9 a. — Axis. 



Length of body, 6-0 in. Breadth of body posteriorly, 6.3 in. 



Fig. 10. — Eight vertebrae conjoined. They are the posterior cervical 

 and anterior dorsal. 



L 



