124 



THE SENSE OF TOUCH IN ANIMALS 



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Fig. 152. — Hoolock Gibbon. Hylo- 

 bates hoolock. x 15. Pes. Inter- 

 digital pad at base of D. 1. Im- 

 brication proximal ; oblique sec- 

 tion. 



Fig. 153. — Hoolock Gibbon. Hylo- 

 bat.es hoolock. x 15. Pes. Plantar 

 siu'face over heel ; imbrication 

 of papillae of coriiim proximal on 

 left of centre of section, distal on 

 right, longitudinal section. 



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Fig. 154. — Orang. Simia satyrus. x 25. Manus, D. 1 (aborted). Terminal 

 phalanx ; imbrication proximal, longitudinal section. 



foot. Papillary ridges low, but with marked proximal imbri- 

 cation. 



Fig. 155. — Longitudinal section from proximal phalanx of 

 a digit of the forefoot. Papillary ridges highly developed, and 

 showing distal imbrication. Driisenleisten and papillae of the 

 corium small and low. 



