ANOPLOTHERIUM AND GIKAFFE. 207 



upper portion of the shaft of the left radius, the articulating head broken 

 off; the bone is much flattened, and its outer border forms a consider- 

 able curve, in consequence of the abrupt expansion of the articulating 

 head, and the sudden contraction of the shaft below it. It is not appa- 

 rent whether the articulating epiphyses had been synostosed ; but the 

 bone is nearly equal in all its principal dimensions to the correspond- 

 ing one of the existing Giraffe, though it is considerably more flattened. 

 It has the greyish weathered appearance of a Sewalik fossil of the sand- 

 stone matrix. This is a valuable and rare specimen. Presented by Col. 

 Colvin. 



B. From Perim Island. 



No. 43. Camelopardalis Sivalensis 1 — Humerus, right, in two frag- 

 ments ; lower articulating surface perfect ; the upper broken oft" imme- 

 diately below the head ; resembling in form exactly the humerus of the 

 giraffe, but a little larger. 



No. 52. Camelopardalis. — Lower end of metacarpal bone, left side, 

 with articulating surfaces, of the size of existing giraffe. 



No. 60. Camelopardalis. — Second or third dorsal vertebra of giraffe, 

 concave and convex articular surfaces present, apophyses wanting. 



II. — On the Number of Existing Species of Giraffe. 

 MS. Memorandum from Note-Booh. 



Some naturalists have attempted to establish two species of giraffe, 

 foimded chiefly on the geogi-aphical range of the Nubian and South 

 African varieties, and on external characters derived from the sldn. But 

 any conclusions built on the former would be begging the question, 

 and dermal marks are insufficient to sustain a case of the kind, unless 

 borne out by peculiarities in the skeleton, or other structural differences. 

 Those who have seen the range of colour through which the tropical 

 antelopes run, fi-om a light blue or pale ash in the young male through 

 every grade to a deep black in the old, such as is presented in the A71- 

 tilope cervicapra and Damalis risia, will distrust any distinction 

 resting on the skin marks or development of the knee scopse in the 

 giraffe. The distinctness of the suture of the bone which supports 

 the alleged third or intra-orbital horn, and the great relief of^ the 

 pedicle sho^vn in the figures in Eiippel's atlas have been adduced 

 as proofs of the specific difference of the North African giraffe; but 

 Professor Owen states that he could detect no evidence of such a suture 

 on the original cranium. I am informed, also, by a distinguished 

 zoologist, and one of our best authorities on the Ruminantia that he 

 examined the head from which the figures were taken, in the Frankfort 

 Mtiseum, along with Dr. Euppel, and foimd neither the suture nor the 

 elevated pedicle shoivn in the figures, both of which Dr. Euppel admitted 

 to be exaggerations introduced by the artist who drew them. No good 

 evidence, therefore, has been adduced in favour of there being two ex- 

 isting species of Giraffe ; the proofs at present all tend to the opposite 

 conclusion. My authority, however, found a considerable difference 

 in the extent and figure of the lachrymal bone, a character, if con- 

 stant, of much importance.— [H. F.] 



