342 DAVIDSON BLACK 
e 
As the result of considerable compression of the skull during 
fossilization, the endocranial cast is quite asymmetrical, and 
much detail in the ventral area has been obscured. Notwith- 
standing this unfavorable condition, it is possible to trace the 
course of the principal sulci with comparative ease. 
The volume of the cast is 425 ec., which is but little less than 
that of the okapi. Indeed, if due allowance be made for the 
vermis [Si 
~ 
Vermis -_4 _ 
_~S.presylyv. 
=). B.0. 
Figs.7,8and9 Outline drawings of endocranial cast of Samotherium, ventral, 
dorsal and right lateral views respectively. , For abbreviations see page 332. 
For photographs from which the outlines were taken, see figures 23 to 25. About 
> Natural size. 
