70 THE GENERAL ANATOMY OF THE LEMUROIDEA [SECT. A 



On these pads and on the larger nodules the epidermis is 

 further distinguished by the presence of papillary ridges. The 



Fig. 38. 



Fig. 38. Lemur mongoz. Papillary ridges of the hand. (Schematic. From 

 a specimen in the Cambridge Anatomy School.) 



Fig. 39. Lemur mongoz. Papillary ridges of the foot. (Schematic. From 

 a specimen in the Cambridge Anatomy School.) 



latter may be taken as indicative of the accession of a high degree 

 of the tactile sense, and they confer this function on the various 



