Termitophilous Collembolan from West Africa. 481 



A noteworthy feature is the presence of three dorsal teeth 

 to the mucro. This character occurs in two species described 

 by Wahlgren from Egypt, namely, C. arcuatus and G. ter- 

 mitum. From C. arcuatus our species differs, among other 

 characters, not only in the general form of the mucro, but in 

 the relative length of the last dental scales and in the 

 proportional lengths of the abdominal segments, and from 



Fiar. 1. 



Cyphoderus bitxtoni,'sp..n. Foot, X 1200. 

 Fig. 2. 



~~~? 



... ^?-~ 



Cyphoderus buxtoni, sp. n. Right dens and mucro (dorsal view), X 530. 



Fig. 3. 



Cyphoderus buxtoni, sp. n. Eight mucro, with last two outer dental 

 scales (side view), X 1800. 



C. termitum in the form of the mucro, but especially in the 

 structure of the claw (Wahlgren, 1906). 



Species of Cyphoderus have been described from various 

 parts of the world, and in nearly all cases living in association 

 with either ants or termites. In our own country the only 

 known species — C. albinos, Nic. — frequently occurs in ants' 



