242 MR. BUSK ON THE KEMAINS OF 
“ 
in length. The epiphyses are perfectly united, and no trace whatever of the junction 
remains, so that the bone must be regarded as mature. The head measures 1” in its 
longest, and 0-85 in its shortest diameter. The distance between the inner border of 
the head and the outer surface of the tubercle is 2". 
The corresponding rib in the young Asiatic Elephant in the B. M., denominated 
E. sumatrensis, has the greatest diameter of the head 1-5, and least 11. And in 
that species the tuberosity is differently formed, having a considerable elongation at 
the bottom, whilst in E. melitensis (a much older animal), the neck is fully as thick 
as in the so-termed E. sumatrensis. It is also to be remarked that in E. melitensis the 
notch or depression between the head and tuberosity is deeper than in the Asiatic form, 
in which also there is no depression below the tuberosity, such as is seen in F. melitensis. 
The comparison between the second rib of E. melitensis and that which I refer to 
E. falconeri will be drawn when I come to the description of the latter. 
7. Another, and in some respects a most important and interesting, fragment belong- 
ing to the bones of the trunk is a small and much mutilated portion of the pelvis 
(Pl. XLVIIL. fig. 26). It consists of part of the right ischium, including a small 
segment of the acetabulum, and a length of about three inches of the body of the bone. 
The surface on the outer, anterior, and inner aspects is almost entire or uninjured; but 
posteriorly there is merely an apparently fresh fracture. ‘The fragment, however, broken 
as it is, is amply sufficient to afford some very important characters. 
From the small remaining segment of the acetabulum it is evident that the curve of 
the articular surface must have had a radius of about 1’°6. The cup was consequently 
fitted to receive « femoral head of about 34 inches in diameter. The anterior surface 
of the bone is slightly hollowed, excepting quite at the upper edge, where the border 
of the acetabulum projects considerably and forms one margin of a wide and shallow 
sulcus or excavation, which was continued upwards into the cotyloid notch. The outer 
surface exhibits part of a large rough tubercular elevation. ‘The inner is smooth and 
nearly even, marked only by a slight eminence. The outer angle is round and smooth ; 
and the inner, or that which forms the ischial border of the obturator foramen, though 
not so obtuse, is also rounded and quite even. 
It is to the latter character more especially that I should wish to direct attention, in 
drawing a comparison between this part in H. melitensis and the corresponding part, 
fortunately also preserved, in E. falconeri, as it shows, perhaps as strikingly as any other 
single part, a considerable distinction between the two forms. 
Tam not aware that the circumstance has been previously noticed; but it is neverthe- 
less the case that a considerable difference in the form of the obturator foramen exists 
between the African and Indian species. 
In both the foramen has somewhat of an oval shape; but in E. africanus the wider 
part of the oval is towards the upper or inner end, whilst it is towards the lower end in 
E. indicus. In E. africanus, again, the margin is tolerably even all round, whilst in 
