DESCEIPTIONS OF THE PAPILLARY RIDGES 23 



P.R, middle and proximal phalanges covered as those of hand with 

 rows of nodules marked with P.R. 

 (6) Plantar surface. 



Three interdigital eminences. 

 One long fleshy eminence at base of D. 1. 

 One small eminence on fibular border. 

 P.R. well-developed whorls on two interdigital eminences, wide 

 ellipses on all the other plantar eminences. 

 „ rest of plantar surface occupied by nodules as on hand. 



Squirrel-like Phal.\nger {Petaurus sciureus). 

 Iland. (Fig. 5.) Digits slightlj' curved towards ulnar side ; and claw- 

 like, elongated curved nails, 

 (a) Digits. 



P.R. on terminal phalanges in narrow ellipses. 

 „ arranged longitudinally on middle phalanges. 

 „ longitudinal, or proximal indefinite. 

 (6) Palmar surface. 



Three interdigital, one thenar, one hypothenar eminence. 

 P.R. transverse on all except thenar eminence, where they are 

 oblique. 

 Foot. (Fig. 6.) Digits claw-like, and nails long and curved, 

 (a) Digits. 



P.R. in broad ellipses on terminal phalanges. 

 „ elsewhere indefinite. 

 (6) Plantar surface. 



Three interdigital eminences, central short ; two lateral elon- 

 gated ; large eminence on tibial side of plantar surface ; 

 small on fibular ; small eminence on heel. 

 P.R. on central interdigital eminence oblique. 

 „ on lateral interdigital eminences transverse. 

 „ longitudinal and oblique on tibial eminence. 

 „ transverse on fibular eminence. 

 „ absent on heel. 



Common Squirrel (Sciurus vulgaris). 

 Hand. (Fig. 7.) Digits long, claw-like ; nails long and curved. D. 1 

 much reduced in size ; no naUs. 

 (a) Digits. 

 P.R. absent on terminal phalanges and represented by a roughened 

 granular surface, 

 indefinite and transverse on middle and proximal phalanges. 

 (6) Palmar surface. 



Three interdigital eminences, thenar and hypothenar, all 

 oval in shape. 

 P.R. radiating on all. 



