152 
TERTIAEY VERTEBRATA OF THE FAYOM. 
C. 10017. 
M. 8061. 
C. 10015. 
Iviglit femur from same locality. Figured on PI. XVI. fig-s. 3, 3 a. The dimensions (in 
centimetres) of this specimen are : — 
Lengtii 87'5 
Longest diameter of head 12-3 
Widtli of proximal end . 28 
,, middle of shaft above third trochanter 12 
„ distal articulation 17'2 
,, distal end at widest point 19'7 
Plaster cast of the above specimen. Made in the British Musenm. 
Left tibia from same locality. Figured on PI. XVI. figs. 4, 4 A. The dimensions (in 
centimetres) of this sjjecimen are : — 
Length 33-u 
Width of proximal end 20 
„ distal end 13-5 
„ shaft at narrowest point 8 
M. 9236. I’laster cast of above specimen. Made in the British Museum. 
M. 9231. Imperfect left tibia. Presented hy the Egyptian Government, 1904. 
M. 8484. Left calcaneum, probably of the present species. Text-fig. 51. The dimensions (in 
centimetres) are : — 
Extreme length 19 
„ depth of anterior end 9'8 
AVidth of astragalar surface 9'5 
„ cuboid surface 6'3 
Presented hy TF. E. de Winton, Esq., 1903. 
The following specimens may be provisionally referred to P. beadnelli, for, in the absence of 
associated series of bones, especially of upper and lower jaws, it is impossible in many cases to 
be certain of the specific determination. Since, however, many of these specimens have been 
found in the immediate neighbourhood of mandibles similar to that upon which P. uintoni has 
been founded (see l)elow', p. 15G), and since that species ap])ears to have been the commonest in 
the.se beds, some at least will no doubt eventually be referred to it. 
M. 8464. Skull, wanting paid of the supraoccipital and most of the facial regions ; the cheek-teeth 
are preserved on the left side. Figured PI. XII. and text-lig. 49 A. The description of 
the skull in this genus given above is founded so far as possible on this specimen. The 
dimensions (in centimetres) of this specimen are : — 
Greate.st length (,so far as preserved, see PI. XII.) .... 63'5 
Width at zygomatic arch 42 
„ external auditory opening 32'2 
Height from junction of basioccipital and basisphenoid to 
sagittal crest 22 
Width of palate between m. 2 7 
„ foramen magnum 0-3 
Height of foramen magnum 3‘7 
Width between outer angles of occipital condyles .... IG'2 
„ of glenoid surface 9'2 
„ between inner ends of glenoid surfaces 14 
Height of opening of inteimal nares 5 o 
