106 



THE SENSE OF TOUCH IN ANIMALS 



phalanx the papillary ridges disappear and the papillae of the 

 corium become very small and less pointed, and reach much less 

 near to the free surface. 



Mellivora indica {Fig. 107). — Longitudinal section from palmar 

 pad of forefoot, with a smooth surface to the epidermis and very 

 long and pointed papillae of the corium. 



Mustela vulgaris (Fig. 108). — Terminal phalanx of a digit on 



Fig. 107. — Ratel. McUimrd indica. x 50. .Manns 

 Pad on palmar surface, longitudinal section. 



the forefoot with a rough and irregular surface on the 

 epidermis and particularly long and pointed papillae of the 

 corium. 



Mustela erminea. — Figs. 109, 110 show sections from 

 terminal phalanges of different digits of the forefoot, the epi- 

 dermis irregular and rough, the papillae of the corium long and 

 pointed and particularly so in Fig. 57 from the second digit. 



Otaria fusilla (Fig. 111).- — Transverse section from skin of 

 plantar surface of hind foot. Epidermis covered with extremely 

 fine longitudinal papillary ridges here shown cut across ; each of 



