DEEMATOGLYPHICS IX PRIMATES 



55 



extended from triradii as- 

 sociated with areas II and IV 

 form boundaries of a cen- 

 trally located rhomboidal 

 field. It is in the parathenar 

 region where the variability 

 is chiefly expressed, the oc- 

 currence or lack of a loop 

 head in this area or the for- 

 mation of a tented arch being; 



the main point of interest. 

 The head of an L d or a tented 

 arch occurs in 39 palms. 

 Three palms are open fields 

 in both P-th and distal cen- 

 tral area ; the remaining 

 three have distal features ad- 

 ditional to P-th. 2 P : V (1); 

 L P V (1). 2 p and 4 P : L d and 

 L u (1). 



JUjUJ 



169 



Figs. 150-169 Ateles, manus. 



