282 



Dr. M. Khalil on a new 



brick-red in colour, gracefully coiled, atid lay in the mucus 

 covering the surface of the stomach. The parasites are very 

 slender. The male is 12 ram. long and 0*18 mm. in maximum 

 diameter. The female is 13 mm. long and 0'19 ram. in 

 maximum diameter. The body in both sexes tapers towards 

 the head-end, and in the female towards the tail-end also. 

 The bursa of the raale is slightly broader than the rest of the 

 body. 



Cuticle. — The cuticle is longitudinally striated. There are 



Fig. 1. 



'Z- 



Cephalic end of the body of Travassosius rufus. 



twenty equidistant longitudinal lines distributed around the 

 circumference of the body. Close to the head the cuticle is 

 transversally striated. 



The Cephalic End. — The cephalic end is smoothly rounded. 

 It is 0"03 mm. in diameter in both sexes. Tlie mouth is 

 surrounded by three ill-defined lips. There is no mouth- 

 capsule. A small mouth-cavity leads directly into the 

 beginning of the oesophagus (fig. 1) . 



