28 



THE SENSE OF TOUCH IN ANIMALS 



Black-headed Lemur {Lemur brunneus). 

 Hand. (Fig. 14.) Elongated ; digits with large wide pulps and short 

 blunt nails, 

 (o) Digits. 



P.R. terminal phalanges in broad longitudinal ellipses on all five 

 digits. 



F.R 



--T. 



Fig. 12. — Hedgehog. Erinaceus euro- Fig. 13. — Hedgehog. Eriruweus euro- 

 poRUS. Manus, right. Drawing jtmus. Pes, right. Drawing from 



from dead specimen. dead specimen. 



P.R. skin of rest of digits covered with nodules of varying size 

 presenting a corrugated appearance. Some of the larger 

 of these nodules marked with obUque P.R. which can be 

 discovered with a lens ; absent on the smaller nodules. 

 (6) Palmar surface. 



Three interdigital eminences, two small hypothenar and one 

 long thenar eminence. 

 P.R. radial eminence ; loops sloping towards ulnar side, open 

 towards radial side. 

 „ central eminence ; wide loops ; longitudinal ; open in distal 



direction. 

 „ ulnar eminence ; oblique P.R. 



