184 
TERTIAliY VEETEBRATA OF THE EATDM. 
M. 8509. Disiul (Muls of tliree humeri of similar form to 0. 
M. 8430. Distal (aids of two right humeri. 
C. 8652. Dislal end of right humerus of a similar form, hut considerably larger size, the width of 
its distal articular surface being 4'7 cm. against 3‘8 cm. in C. yG.'iS. 
M. 8862. Distal part of right humerus. In this specimen there is a supratrochlear perforation. 
The dimensions (in centimetres) are: — Width of shaft 3; width of distal end G; width 
of distal articulation 4‘5. Presented hy the Eyyjitian Government , 1904. 
C. 8124. Left radius. This hone is comparatively long and slender, but it widens out considerably 
tow'ards the distal end. The anterior face of the shaft is convex, the posterior (ulnar) 
surface llattened. The proximal articular surface consists of a larger outer portion, 
deeply grooved towards its inner side for the intertrochlear ridge of the humerus, and 
a smaller inner portion only very slightly concave from before backwards and looking 
upwards and iinvards : this, with the large inner portion of the sigmoid surface of the 
ulna, articulates with the inner portion of the distal articulation of the humerus. About 
the middle of the posterior face there is a prominent facet for articulation with the 
ulna, but in addition to this the whole posterior surface seems to have been ridged 
and roughened, showing that the union between the two bones was a very close 
one. The distal articulation is unknowm. The dimensions (in centimetres) of this 
specimen are : — 
AV' idth of proximal articular surface 4'7 
„ middle of shaft 2-4 
„ distal end 5'3 
Length (without distal epiphysis) 31'4 
M. 9124. Incomplete left radius similar to last. 
M, 8863. Upper portion of a left ulna. The olecranon process is large and rises high above tlie 
articulation, but projects very little backwards. The inner border of its upper end is 
produced upwards into a flange which forms the inner side of a large groove (? for a 
tendon). The sigmoid notch is shallow and except tow’ards the upper end the surface 
for the humerus is on the inner side only. There is a small distal surface for the outer 
siile of the humeral articulation, and immediately beneath it is the projecting facet 
l)y which the bone interlocks with the upper end of the radius, which must also have 
been closely united with the rugose anterior face of the shaft. This bcmomes considerably 
narrowed towards its middle and is strongly compressed from before backwards, though 
less so than in Dlplo'pns ; towards the distal end the radial surface forms a sort of shelf 
on the inner side of the shaft and is bordered externally by a strong ridge. The 
distal extremiiy of the bone is unknown. The dimensions (in centimetres) of this 
specimen are : — 
Greatest autero-posterior width of olecranon process .... b-S 
] I eight of olecranon above articulation ()'7 
Ijengt h of sigmoid notch 4 ’4 
Width of surface for upper end of radius 3-() 
I’resented by the Kyypt'uin (torernment, 1904. 
Presented by the Kyyj>ltan Government, 1904. 
M.S8fi3a. Dpper end of a similar right ulna. 
