]22 



THE SENSE OF TOUCH IN ANIMALS 





Fig. 147. — Green Monkey. Cerco- 

 pithecus callitrichus. x 15. Manus. 

 Palmar surface, interdigital jDacl 

 on ulnar side ; imbrication proxi- 

 mal, longitudinal section. 



Fig. 149. — Green Monkey. Cerco- 

 pifhecus callitrichus. X 15. Pes. 

 Plantar surface, interdigital pad 

 at base of D. 3 and D. 4, tlu-ough 

 a whorl ; imbrication distal, longi- 

 tudinal section. 



Fig. 148. — Green Monkey. Cercopithecus caUitrichns. x 25. Pe.?, D. 5. 

 Terminal phalanx (tip) ; imbrication proximal, longitudinal section. 



pointed papillae of the corium, and folds of epidermis between 

 them markedly developed. 



Hylohates hoolock (Fig. 152). — An oblique section through 

 interdigital pad on plantar surface of hind foot. Papillary 

 ridges showing irregular proximal imbrication, Drlisenleisten 

 and papillae of the corium not well-defined. 



Fig. 153. — Longitudinal section through skin over heel. On 



