19G 
TEETLAEY VERTEBRATA OF THE FATtTM. 
doubled, the posterior lobe still larger, and there are traces of a small postero-internal 
tubercle. The dimensions (in centimetres) of the premolars are : — 
Length. Width. 
pm. 1 1 -y '7 
pm. 2 1-3 -8 
2 >m. 3 1’5 1 
pm. 4 I'G 1'2 
Length of ])reuiolar series 5-6. 
Geilioliyus major, Andrews. 
[Text-fig. 6o.] 
1904. Gemohijus major, (J. W. Andrews, Geol. Mag. [5] vol. i. p. 212. 
Type Specimen . — Portion of loft ramus of mandible with y^m. 1-3 
Geological Museum, Cairo. 
Text-fig. G3. 
Left lower premolars {pm. 1-^un. 3) of (I'enioJn/us major. 
f nat. size. 
(text-fig. 63) ; 
T'his species is considerably larger tlian either of the others, the length of the three 
premolars being 5'5 cm., while in G. mirus the same teeth measure 3’G cm. and in 
G. fajvmensis 4T cm. The posterior lobes of the premolars are still larger and more 
selenodont than in G. fajimiensis. 
Form, dt" Loc. — Fluvio-marine bods (Upper Eocene): P>irket-el-Qurun. 
C. 8980. Portion of loft ramus of mandible with pm. 1-3 in good })rcservation. The teeth (text- 
tig. 63) are very similar to those of G , fapiinen.ys,\n\i the hinder lobe is wider and more 
massive, .and in wear gives an even more distinct V-shaped surface. The dimensions 
( in centimetres) of the teeth are : — 
Length. Width. 
pm. 1 1-8 1 
jmi.'I l-'J 1-4 
pm.‘^ 2 1-5 
M. 8876. Plaster cast of the above specimen. 
Made in the Frillsh ^Intfenm. 
