134 
Annals of the Transvaal Museum 
this difference is, that the hinder border of the lateral collateral pit stands 
out very far laterally. There is no medial collateral pit, the medial surface 
of the distal end being evenly concave. Posteriorly the medial side of the 
distal end forms a sharp ridge, the lower surface of which joins up with the 
articulation surface. The posterior surface of the distal end is concave along 
its middle. 
Metatarsale V. A small piece of the distal end of metatarsale V is broken 
off. As preserved the whole length of the bone is 7 cm. The whole length may 
have been 7-5 cm. Proximally the bone is very broad and thin. Its breadth 
here is 4-3 cm. Laterally the thickness of the proximal end is 1-5 cm., but 
towards the medial side it rapidly thins down to 0*7 cm. Its medial edge is 
sharp. The medial end of the upper border of this thin portion is bent slightly 
backwards; the medial border runs downwards, forwards and outwards. The 
anterior surface is convex, the posterior concave. The hinder lateral ridge is 
sharp and runs downwards dnd to the medial side. At the lower end of this 
ridge the bone has a breadth of 1*5 cln. and a thickness of 1-3 cm. A broad 
low ridge starts at this spot on the lateral surface and runs downwards and 
forwards. 
All the phalanges have been preserved. In the following table their 
measurements are given in centimetres : 
Length 
Proximal 
Distal 
Breadth 
Thickness 
Breadth 
Thickness 
I, I 
5 
3-4 
2-3 
ant. 
i -5 
post. 
2-8 
2-1 
I, 2 
7-8 
2-2 
3'4 
— 
. — 
— 
II, I 
6 
3’3 
2-4 
2-6 
3-4 
i -9 
II, 2 
4 
2-9 
2-3 
i -7 
2*5 
i *9 
II, 3 
±6-8 
i-8 
2-8 
— 
- — - 
III, I 
6 
3*7 
2-1 
2-5 
3'3 
i *7 
III, 2 
4’3 
3 
2 
2 
2-8 
i-6 
HI. 3 
3-5 
2*6 
i*8 
i *5 
2-3 
i-6 
III, 4 
1 — 
2*1 
2 
— 
: — 
— 
IV, 1 
4-6 
3*2 
i-8 
2 
3 
i -5 
IV, 2 
3'5 
2-8 
i*8 
i-8 
2-7 
i *4 
IV, 3 
3 
2-6 
i '7 
i-6 
2-4 
i *4 
IV, 4 
2-7 
2-2 
i-6 
1-2 
2-1 
i -3 
IV, 5 
5 *i 
i *7 
i-8 
— 
— 
— 
v, i 
i-8 
i -5 
o*8 
— 
— 
o -5 
Remarks. The anterior breadth of the distal end has been measured across 
the upper anterior boundary of the articulation surface. The first phalanges 
can be recognised by the fact that their proximal articulation surfaces are 
evenly concave and that the hinder border of this surface is straight, at all 
events not projecting upwards in the centre. All the penultimate, phalanges 
have in common that the distal ends of their anterior surfaces are evenly 
concave and not pitted. These two characters, therefore, separate I, 1 from 
all other phalanges. Moreover the distal end of I, 1 is twisted slightly* to the 
lateral side. The posterior border of the proximal articulation surface is 
higher than the anterior one. The distal articulation surface is unsymmetrical 
and the articulation ridges of this end run much further upwards on the 
posterior than on the anterior surface. 
The proximal articulation surface of the second, third and fourth pha- 
langes and claws is divided into two parts by a ridge and corresponds with 
