222 
TEliTIAEY VERTEBKATA OF THE FATtTM. 
somewhat in advance of tlie hinder border of the tootli next in front ; there is a deep 
fossa for tlie recejition of the lower molar behind and to the inner side of rn. 2. The 
whole dentition, so far as ])reserved, is closely similar to that of Pterodon dasi/ttroulen, 
from which, however, this s[)ecies is distinguished by its greater size. 
The dimensions (in centimetres) of this specimen are : — 
Width of snout at level of canines 7 
„ „ behind jun. 2 5-5 
Text-fig. 09. 
Anterior part of skull of p.) Pterodon africamis : A, from riglit side ; B, from below, 
anterior palatine foramen; ao.f., antorbital foramen; ?n. 1-2, first and second molars; 2-4, 
second, third, and fourth premolars. On the right side the second molar lias been restored from that 
jireserved on the left. | uat. size. 
The dimensions (in centimetres) of the teeth arc : — 
Length. Width. 
pm. 2 2'4 app. ]‘2 
pm. 3 2' I 1 '3 
pm. 4 2-5 2 
m. 1 2-9 2 
m.2 3-0 2-3 
Length from anterior end of yua. 2 to posterior end of m. 2, 13'5 app. 
