24 THE SENSE OF TOUCH IN ANIMALS 



Foot. (Fig. 8.) Digits long, claw-like ; nails long and curved. D. 1 

 well developed, with long curved nail, 

 (a) Digits. 

 P.R. absent on terminal phalanges, represented by a rough granular 

 surface. 

 „ indefinite transverse ridges on middle and proximal phalanges. 



Fig. 



7. — Common Squirrel. Sciu- 

 rus vulgaris. Manus, right. 

 Drawing from dead speci- 



FiG. 9. — KrNKAJOU. Cercolcptcs 



caudivolvulus. Manus, left. 



Drawing from dead speci- 

 men. 



(6) Plantar surface. 



Three interdigital eminences, oval in shape. 

 Fleshy oval eminence at base of D. 1. 

 Small eminence on tibial and fibular borders. 

 P.R. oblique and longitudinal on all plantar eminences. 



KiNKAJOU {Cercoleptes caudivolvulus). 

 Hand. (Fig. 9.) Short digits, with very strong pointed nails, webbed 

 to second joint ; palmar portion thick, with fleshy pads, 

 (a) Digits. 



P.R. terminal phalanges, a few well-marked ridges on tip of each 

 pulp surrounding it, so as to form rounded arches with con- 

 cavity in proximal direction. These ridges here and on rest 

 of hand merge into a tesselated arrangement of the epidermis 



