OF THE TONGUES OF THE MAMMALIA. 



293 



The Lateral Organs. 



The sulci are wide, but not to such an extent as in C.patas, so 

 the lateral organs appear to be composed of a row of small bodies 

 each of which is furrowed. These are not, however, so prominent 

 as in C. patas. 



The measurements, etc., are given as follows : — 



Organ. Length. Ridges. Sulci. 



Right 1-5 cm. 9 10 



Left 1-2 8 9 



Text-figure 22. 



m 



v&c. 



The tongue of Cercopithecus athiops. 



The Frenal Lamella (text-fig. 22 B). 

 The triangular frenal lamella has an entire apex, and smooth 

 plain edges which are free throughout their entire length. 



The Median Ventral Sulcus. 

 The sulcus is short and opens into a wide triangular space. It 

 lodges a small median crest. 



The Green Cercopitheque {C. sabceus). 

 Habitat : Sierra Leone. 



Several authors have described the patterns exhibited by the 

 vallate papillae. Mayer (7) described four pairs of papilla?, and 

 Munch (8) recorded the two-pair form ; he also mentions cases in 

 which there were three papillae with an additional small papilla, 

 on each limb of the V. In six cases I observed the two-pair 

 type. 



Measurements of my largest specimen : — Total length 4*9 cm. ; 

 length of the oral part 3'9 cm.; length of the pharyngeal part 



