^rERTIATvY YEKTE13RATA OF THE FATt'M. 
ll>8 
coiicavc! at both onds. Tlic transverse processes of all except the seventh are perforated 
hv a vertohrarterial canal, and on the anterior ones there is a strong hyj)apophysial 
i’idg(^ on the hinder end of the c(Mitrnm. 
'I'ho antenaor dorsal has an oval biconcave centrum ; the external angles of the 
posterior face hear concave facets for the capitulnm of the rib ; the transverse process 
is stout and short and bears a largo downwardly- directed tubercular facet, strongly 
concaA^e from before backwards. The other dorsal centra liaA^e a straight neural border 
and are strongly convex below. The lumbar centra are similar, and bear on their 
sides strong flattened transverse processes. 
Ileiglit of 
Width of 
Length of 
anterior face. 
clHtto. 
centrum. 
Atlas 
7'5 
G'o (with odontoid). 
Last cervical . . . . 
. . . 9 -3 
3-5 
2-G 
Anterior dorsal 
... 3-3 
3-8 
2-8 
Posterior dorsal . . . 
. . . 3-8 
5'5 app. 
3-8 
Lumbar 
... 3-8 
4-7 
3-8 
M. 8191. Plaster cast of {)alatal region of type skull. Made in the British Museum. 
M. 8912. Left upper molars. Figured on PI. XVIT. fig. .3. These teeth show the well-developed 
cingulum and the peculiar sculpturing of the enamel. The dimensions (in centimetres) 
are : — • 
Leiigtli. 
Widtl 
2-5 
2-1 
B), 
2-3 
7)1, 
o 
2-8 
2-5 
Bresented h>j the Egijptian Government, 1904. 
M. 9229. Centrum of axis with odontoid. Presented by Baron Franz Xopesa, 1905. 
Moeritlierium trigonodon, Andrews. 
[Plate IX. fig. 5.] 
191)1. Mu'ritl(erium triyodon, C. AV. Andrews, Geol. Mag. [5] vol. i. p. 112. 
Type Specimen . — Posterior portion of right ramus of mandible (PI. IX. fig. 5); 
Pritish Museum. 
This species is distinguished by the form of the posterior lower molar, which narrows 
])(;steriorly, the talon consisting almost entirely of one large tubercle ; also by the 
rapidity with which the teeth decrease in size from behind forwards. 
Form. & Loc. — Fluvio-marine beds (Upper Eocene) : north of Pii ket-el-Quruu. 
