236 



Dr. M. Klialil on the 



dorsal lancet, and their apices curve dorsally approacliing 

 the dorsal lancets (fig. 2). 



The mouth-opening is oval in shape, becoming angular 

 ventrally, where its rim crosses the interval between the two 

 chitinous plates. The ventro-dorsal diameter of the mouth- 

 opening is 0"08 mm. and its transverse diameter is 0*12 mm. 



tEsopJia(jus. — Tiie oesophagus is elongated, attaining its 

 maximum diameter near its posterior end. Tiie length of the 

 oesophagus is 1'2 mm. in the female and 1*1 mm. in the male. 



F\s. 1. 



Dorsal view of moutli-capsule. The tips of the ventral lancets or teeth 

 are seen in the depth of the mouth-capsule. 



Its maximum diameter is 0*22 mm. and 0*17 mm. in both 

 sexes respectively. There is a very small oesophageal funnel. 



Chi/le Intestine. — The chyle intestine is straight and is 

 unpigmented. The rectum is a short chitinous tube, 0"15 ram. 

 in length. 



Ej:cretory System. — The excretory vesicular is globular, 

 small, and is frequently collapsed. The excretory pore is 

 placed in the mid-ventral line a little in front of the level of 



