On two new Araphistome parasites of Siimatrau fishes. 



675 



characterised by its curio.us, sinuous, puckered outline, tliree spout- 

 like projections extending out backward. The sucker is capacious, 

 rather tliin-walled, and bounded in front by the hood-like anterior 

 marg-in. The worms have been fixed in such a position that in one 

 the ''dorsal surface is concave and the head end therefore turned 



Exo 



Fig-. B. 



Cladorchis helosfomafis n. sp. from ventral surface. 



Letteriiiii- as in Fig. A. 



