Anhals OR the Transvaal MuseHm, 
79 
sternum, the right coracoid and precoracoid, and the left clavicle. Ex- 
cepting the scapulae, all these parts are well preserved and exposed 
(PL XII). 
The Scapula. — Judging from the exposed proximal end of the right 
scapula, this must have been a bone of great size. The articulation surface 
has been damaged. The acromion is also broken, but still projects 12 mm. 
from the bone. The breadth of this proximal end has exceeded 78 mm. 
It is still in contact with the right humerus and nearly so with the right 
coracoid. 
The Coracoid and Precoracoid. — These two bones are firmly in contact 
with each other. They both show their outer surface. The precoracoid 
has more or less the shape of a quadrangle, while the coracoid has the shape 
of a quadrangle with a triangle attached to one of its long sides, the other 
long side forming the connection with the precoracoid. The hinder end 
of the coracoid, the triangle part, is bent inwards. The outer edge of 
the precoracoid is deeply notched. The front and inner edges of the bone 
are fairly straight. 
The Sternum. — This is a large, broad, and relatively thin bone. In 
front it is bordered by a straight edge, which is sided by two edges at an 
angle of about 120 degrees. Laterally these round off into the hinder 
lateral edges, which converge backwards, enclosing an angle of about 
sixty degrees. The hinder end of the sternum is slightly notched. 
The outer surface of the sternum is not flat. A ridge extends from 
the notch in the hinder end towards the middle of the bone, where it ter- 
minates, the surface between this point and the front edge being slightly 
transversely hollow. The remaining parts of the front half of the bone, 
those lying behind the front lateral edges, are slightly convex, the axes 
of these convexities meeting the front end of the central ridge in the middle 
of the bone. Behind these convexities the surface of the bone is sharply 
concave, becoming almost flat further backwards. All these features have 
also been noticed, although much less conspicuous, in a smaller sternum 
of another species, probably of Lystrosaurus . 
The Clavicle. — This is a long slender bone. The median end is broad 
and flat. There is a slight curve in the bone, near to this end, directing 
the lateral end more forwards. The lateral end is missing. 
Dimensions : 
Length of the coracoid 72 mm. 
Breadth of the coracoid 68 mm. 
Length of the precoracoid 57 mm. 
Breadth of the precoracoid 72 mm. 
Length of the sternum 140 mm. 
Breadth of the sternum 140 mm. 
Length of the remaining part of the clavicle 200 mm. 
Breadth of the median end 38 mm. 
Breadth at the curve 13 mm. 
The Fore-Limbs. 
Both the humeri are present, but it is doubtful whether any other 
bones of the fore-limbs are preserved. There is a bone half buried under 
