 The ears are small , sparsely covered in hair , and hidden in the fur . Similar to the slender lorises , the fur around and directly above the eyes is dark . Unlike the slender lorises , however , the white stripe that separates the eye rings broadens both on the tip of the nose and on the forehead while also fading out on the forehead . Like other strepsirrhine primates , the nose and lip are covered by a moist skin called the rhinarium ( " wet nose " ) , which is a sense organ . 
