132 Mr. E. I. Pocock on the 



up to the distal ends of the digital pads^ as in F. nehulosa. 

 The claw-sheaths also are well developed, with distinct inner 

 lobe upon the second, third, and fourth digits; but this lobe 

 is sufficiently small to be negligible upon the fifth digit. 

 In the hind, foot the webs are also well developed, although 

 shallower than on the fore foot. The inner lobe of the claw- 

 sheath is negligible upon the second and fifth^ hut well 

 developed on the third and distinct though small upon the 

 fourth digit. 



F. pardalis has feet similar to those of F. tviedii (Ann. & 

 Mag. Nat. Hist. (6) xviii. p. 428, fig. 5, A, 1916). 



It is interesting to notice that the feet of F. tviedii and 

 F. pardalis differ rather markedly from those of F. geoffroyi, 

 F. salinarum, and F. jaquarondi, and also from those of 

 F. concolor, though to a slightly less extent^ in the develop- 

 ment of the webs and of the claw-sheaths. 



F. concolor (fig. 11, A, B, C). — In an example three 

 months old the feet are shorter and broader than in 

 F. geqffroyi, and provided with larger pads and better 

 developed claw-sheaths. Nevertheless, the wehs are de- 

 veloped to approximately the same extent, and the inner 

 lobe of the claw-sheaths is small upon the second and 

 third digits and negligible upon the fourth and fifth of the 

 fore foot, and also negligible upon the second, fourth, and 

 fifth of the hind foot. In neither foot do the sheaths encase 

 the claws almost to the tip, and^ in the extent to which the 

 claws when retracted are exposed, the feet approximately 

 resemble those of F. geoffroyi, jaguaroiuVi., viverrina, and 

 sylvestris, and do not conform to the type of foot of 

 Panthera (fig. 12). 



Genus Panthera, Oken. 



In the species of the genus Panthera (fig. 12) examined, 

 namely, P. jjardus, onca, tigris, and leo, the feet are very 

 much alike. They are short, broad, compact^ and difficult 

 to spread. The plantar and digital pads are large and the 

 sheaths are well developed, botii upon the outer and 

 the inner side of the claw, and almost conceal the tips 

 of the claws when retracted. In the fore foot the carpal pad 

 usually has a Avidely rounded apex, and the webs extend almost 

 up to the tips of the digital pads, at least on the admedian 

 side, and show only a shallow emargination when the digits 

 are stretched. In the hind foot the webs are less extensive 

 and more emaroinate. 



