DESCRIPTION OF SPECIES EXAMINED 



117 



Fig. 133. — Squirrel Monkey. Chry- Fig. 136. — Chacma B.4boon. Papio 



sothrix sciurea. x 15. Manus, porcariiis. x 15. Pes. Plantar 



D. 2. tirminal phalanx (tip), surface, fibular border, longitu- 



longitudinal section. dinal section ; distal imbrication. 



Midas ursulus (Fig. 130). — A transverse section of a terminal 

 phalanx of the hind foot showing irregular papillary ridges, 

 long Driisenleisten and long and pointed papillae of the corium. 

 (Fig. 13i). — Longitudinal section through palmar pad at the 

 base of a digit of the forefoot. Very marked and relatively 

 large Driisenleisten, low papillary ridges, and blunt, low papillae 

 of the corium. 



Hapale jacchus (Fig. 132). — Longitudinal section from a pad 

 on the palmar surface of the forefoot. Papillary ridges low, Driisen- 

 leisten large and papillae of the corium not liighly developed. 



Chrysothrix sciurea (Fig. 133). — Longitudinal section from 

 the terminal phalanx of a digit of the forefoot, with low papillary 

 ridges and highly developed Driisenleisten and papillae of the 

 corium. 



Chrysothrix sciurea (Fig. 134). — Longitudinal section from 

 plantar surface of the hind foot, from a pad at the base of D. 5. 

 Papillary ridges more definite than those of Fig. 81, Driisen- 

 leisten less pointed and shorter, also papillae of the corium 

 shorter and wider. 



Papio forcarius (Fig. 135).— Longitudinal section from an 

 interdigital palmar pad of the forefoot through a whorl of papil- 



