50 THE SENSE OF TOUCH IN ANIMALS 



Foot. (Fig. 37.) Digits rather long ; D. 2, 3, 4, 5 webbed to level of 

 first phalangeal joint ; nails long and pointed, short on 

 D. 1. 

 {a) Digits. 



P.R. terminal phalanges, longitudinal ellipses. 

 „ middle phalanges, corrugated and without P.R. 

 „ proximal phalanges, D. 1, transverse ; D. 2, 3, 4, 5, corrugated 

 and without P.R. 

 [b) Plantar surface. 



Three interdigital eminences ; central flattened more than 



tibial and fibular. 

 Eminence on tibial border extending from base of D. 1 ; 

 fibular, long and extending to heel. 

 P.R. central interdigital eminence, longitudinal. 

 „ tibial „ „ wide loops open to fibular 



border. 

 „ fibular „ „ loops open to fibular border. 



„ eminence at base of D. 1 ; wide ovate whorl ; loops on 



proximal portion. 

 „ „ on fibular border, wide loops open to fibular side, 



remaining portion oblique. 

 „ „ on heel, transverse. 



Lion-tailed Monkey {Macacus silenus). 

 Hand. (Fig. 38.) Digits and palmar portion well proportioned, nails 

 short and blunt, 

 (a) Digits. 



P.R. terminal phalanges, longitudinal, wide ellipses. 

 „ middle phalanges : D. 2, transverse ; D. 3, 4, 5, arched opening 



in proximal direction. 

 „ proximal phalanges : D. 1, 2, 3 transverse ; D. 4, oblique ; 

 D. 5, loAV arches open in proximal direction. 

 {h) Palmar surface. 



Three interdigital eminences, one thenar large, one hypo- 

 thenar. 

 P.R. radial interdigital eminence, ovate whorl, transversely placed. 

 „ central „ „ well-formed whorl. 



„ ulnar „ „ „ „ 



„ thenar eminence, wide loops placed transversely, open to radial 



side. 

 „ hypothenar eminence, distal portion, low arches open in 

 proximal direction ; proximal portion, loops open to ulnar 

 side. 

 Foot. (Fig. 39.) Digits and plantar portion well proportioned, nails short, 

 (a) Digits. 



P.R. terminal phalanges, longitudinal ; no ellipses except on D. 1. 



