A DESCRIPTIVE CATALOGUE 
OF THE 
TERTIARY VERTEBRATA 
OF 
THE EAYUM, EGYPT. 
Class MAMMALIA. 
Order UNGULATA. 
Suborder BARYPOD A. 
[C. W. Andrews^ Geol. Mag. [5] vol. i. (1904), p. 481.] 
Full eutherian dentition without diastemata. Molars tending to become hypsodont ; 
premolars differing widely from molars. Anterior palatine foramen very large and 
single. Alisphenoid canal present; no condylar foramen hitherto observed. Brain- 
cavity relatively much larger than in the Amblypoda. No entepicondylar canal in the 
humerus ; no third trochanter in the femur. Both feet probably pentadactyl. Fore 
foot much like that of the Proboscidea ; the metacarpals alternating to the same extent 
as in Elephas, and the scaphoid closely similar to that of the latter genus. Ulna 
entering into the carpal joint much more extensively than the radius; the cuneiform 
consequently large and sometimes overlapping the magnum, and the scaphoid relatively 
small. Flind foot differing widely from that of the Proboscidea, and approaching that 
of the Amblypoda. Astragalus and calcaneum both bearing large fibular facets ; the 
low broad astragalus articulating distall y with the cuboid and navicular, the former 
having only a small surface of contact with the calcaneum. A small tibiale probably 
present. 
From the shape of the calcaneum it seems probable that the heel sometimes rested 
on the ground. 
B 
