URSUS SPELAUS. 93 
preceding, by a hole pierced above the internal condyle for 
the passage of the ulnar artery.”* 
Whatever may be deemed the value of the character of 
the perforation of the inner condyle, I can affirm that it 
derives no accession from the other differences manifested 
by the figure in Hunter’s memoir, which Cuvier supposed 
to be of a fossil Bear; that figure having been, in fact, taken 
from the imperforate humerus of an old Polar Bear, inserted 
in the plate (pl. xx. Phil. Trans. 1794), and placed above the 
figure of the true fossil humerus in order to illustrate the 
differences between the recent and fossil species. The bone 
of the Polar Bear was placed by Hunter in the same drawer 
with two humeri of the Cave Bear (Ursus speleus), from 
Gailenreuth, which it exceeds in size, and which are the 
identical specimens alluded to in the following passage of 
Hunter's Memoir :—‘ These are two ossa humeri rather of 
less size than those of the recent White Bear.” Hunter does 
not allude to any other differences, probably intending these 
to be illustrated by the figures. These figures, in fact, show 
that the humerus of the White Bear (Ursus maritimus, 
Jig. 31) is broader at both extremities, and thicker in pro- 
portion to its length. The supinator ridge forms an angle 
instead of being continued downwards in a gentle convex 
curve; the internal condyle is much thicker and stronger, 
where it bounds the olecranal cavity, and it extends inwards 
* “Qn trouve deux sortes d’humérus, tous deux appartenant a des Ours, et 
cependant fort différens l’un de Vautre, John Hunter les a déja représentés (Phil. 
Trans. 1794, pl. xx.) ; mais depuis on n’a insisté dans aucun ouvrage sur leur 
differénce. La deuxieme sorte d’humérus de ces cayernes, pl. xxy. fig. 4, 5, 6, et 
7, m’est connue par un échantillon bien entier que notre Muséum posséde, par la 
gravure de Hunter, et par le dessin que je dois a feu Adrien Camper d’une_por- 
tion qui en comprenoit les trois quarts inférieurs. Elle differe éminemment de la 
precedente par un trou percé au dessus du condyle interne pour le passage de 
Vartere cubitale. (Voy. a, fig. 4 et 5.)”—Ossemens Fossiles, 4to. 1823, tom. iv. p- 
362. 
