so 
TEliTTAKY VEKTEBKATA OF THE FAYtM. 
M. 8405. cuboid (text-fig. 34). 
C. 8327. Higlit ctd)oi(l. 
M. 8834. Loft cul)oid. 
C. 9024. L(4't cnl)oi(l. 
C. 7971, C. 9036, C. 9059. Cuboids. 
TIu' diiuei).sions (in centimetres) of some of these 
Width of astragalar surface 
,, distal end of bone 
(Greatest depth 
C. 9051. (?) (Middle metatarsal (text-fig. 35, 2). 
C. 9273. Tjuteral metatarsal (text-fig. 35, 1). 
M. 8413. Middle metatarsal. 
M. 8403 (2). Middle metatarsals. 
M. 8403 a. Lateral metatarsal. 
C. 9061. ? Metatarsal. 
Presented hy the Kyyptian Government, 1904. 
Presented hy the Eiryptian Government, 1904. 
cuboids are : — 
C. 8327. 
C.7071. 
M. 8405. 
M. 8834. 
5-2 
4-7 
4-.5 
4-3 
G-G 
5-2 
6-5 
5-8 
4-0 
4-3 
3-7 
P resented hy the Eyyptian Government, 1902. 
Presented hy the Eyyjdian Government, 1902. 
Arsinoitheriuni andrewsi, Lankester. 
[Plate IV. figs. 2, 3 ; text-fig. 38.] 
1903. Arsinokherium andreivsi, E. E. Lankester, The Sphere, Sept. 1903, quoted in Geol. Mag. 
[4] vol. X. p. 531. 
1904. „ ,, ( '. AY. Andrews, Geol. Mag. [5] vol. i. pi. vi. figs. 1-3. 
Type Specimen . — A left maxilla Avitli 2-?n. 3 and the associated mandible tvitli 
i. 3, three cervical vertebrte, the distal half of a left humerus (text-fig. 38), and a 
right ulna ; British Museum. 
This species is distinguished from A. zitteli by its much greater size, its dimensions 
l)eing nearly half as large again. The mandible attains a length of about 73 cm. ; 
the length of the three ])osterior upper premolars and the molars taken together 
is 34'5 cm. The lower ])remolars a})pear to have their crowns somewhat more 
compressed from witliin outwards than is the case in the ty])e species, otherwise the 
dentition is closely similar in the two forms. T'he enormously massive humerus has 
its condyles rather more strongly develo[)ed than in the other species, and the 
Lattening of the ])osterior face of the lemur seems to be even more strongly 
marked. 
Form. & Loc . — IT uvio -marine beds (Upper Eocene) : north of Birket-cT-Qurun. 
