152 



TEETIAEY VERTEBRATA OF THE FATtM. 



C. 10017. Right femur from same locality. Figured on PI. XVI. figs. 3, 3 A. The dimensions (in 

 centimetres) o£ this specimen are : — 



Length 87'5 



Longest diameter of head 12'3 



Width of proximal end , . 28 



,, middle of shaft above third trochanter 12 



„ distal articulation 17'2 



,, distal end at widest point 19'7 



M. 8061. Plaster cast of the above specimen. Made in the British Museum. 



C. 10015. Left tibia from same locality.' Figured on PI. XVI. figs. 4, 4 A. The dimensions (in 

 centimetres) of this specimen are : — 



Length 33-5 



Width of proximal end 20 



„ distal end 13*5 



„ shaft at narrowest point 8 



M. 9236. Plaster 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 



Width of astr'agalar surface ... 9'5 



„ cuboid surface ... 6'3 



Presented hy W. E. de Winton, Esq., 1903. 

 The following specimens may be provisionally referred to P. beadnelU, 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- wintoni has 

 been founded (see below, p. 156), and since that species appears to have been the commonest in 

 these beds, some at least will no doubt eventually be referred to it. 



M. 8464. Skull, wanting part of the supraoccipital and most of the facial regions ; the cheek-teeth 

 are preserved on the left side. Figured PL XII. and text-fig. 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 : — 



Grreatest 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 in. 2 7 



„ foramen magnum .... 6-3 



Height of foramen magnum 3*7 



Width between outer angles of occipital condyles .... 16-2 



„ of glenoid surface 9-2 



„ between inner ends of glenoid surfaces 14 



Height of opening of internal nares 55 



