PARASITES OF ELEPHANTS. 



261 



Memphisia aziza Kbalil, 1922. (Text-figs. 59-64). 



Material. — The material consists of more than sixty specimens 

 sorted from Prof. Leiper's collection. 



Shape of body. — TJie body is slender. It is slightly shorter 

 than M. memphisia. The males are 12 mm. long and the females 

 are 15 mm. The maximnm diameter is about the middle of the 

 body, being -5 mm. in both sexes. The head end is very narrow, 

 being -1 mm in diameter. There is a cuticular collar, less pro- 

 jecting than in M. memphisia. There is no cuticular expansion. 

 The female tail is less abruptly constricted than is the type- 

 species. 



Text-fio'ure 59. 



Memphisia aziza Khalil. Ventral view of head. 



Shin. — The cuticle is very finely striated. The striations are 

 at intervals of "01 mm. The cuticular collar is demarcated from 

 the body by a shallow gi'oove. 



Mouth collar. — The mouth collar is distinctly separated from 

 the rest of the body by a groovy. It is irregularly rounded 

 when seen laterally, and almost quadrangular when seen from 

 the ventral or dorsal surface. The latter appearance is due to 

 the presence of the lateral head papillae being on the extreme 



