WHICH DIED IN THE ZOOLOGICAL GARDENS. 



905 



(2) The appearance of the month capsule when viewed from 



the dorsal respect. In my specimens the mouth capsule 

 appears much deeper than the mouth capsule in Ales- 

 sandrini's figure. 



(3) Length of the spicules : 



Alessandrini's measurement = 960 /a. 

 Material fi'om Felis tigris = 800 /x,. 



These differences do not seem to indicate that the worms from 

 F. tigris are of a different species from those described by 

 Alessandrini from F. mitis. The variations noted might well 

 be ascribed to the occurrence in a different host. 



It would seem that the figures of the mouth capsule, as given 

 by Alessandrini, were made from somewhat flattened material ; 

 I have therefore prepared new figures of the head from the dorsal 

 and lateral aspects (text-figs. 1 & 2). 



Text-fig. 3. 



Text-fig. 4, 



/OOfj. 



Cliaracostomum asmilium R., H. & Joyeux. 

 Mouth capsule. Dorsal view. Dorsal ray of bursa. $ . 



Characostomum asmilium R., H. & Joyeux, 1913. 



This species was first described by Railliet, Henry and Joyeux 

 in 1913 from Cercopithecus patas (7). 



These authors describe the worm fully, but do not give figures 

 of the bursa of the male or the cephalic extremity from the 

 dorsal aspect. 



Two males were found in the small intestine of a Pig-tailed 

 Macaque (Macaciis nemestrinus) and one female from a Slow 

 Loris [Nycticebus tardigradtis). 



