PARASITES OF A CHAPMAN S ZEBHA. 



449 



posterior outer side a sliort spur. The posterior part of the 

 mouth capsule wall is thick and becomes broader towards the 

 base, which is notched to form two parts, one narrow and the 

 other broad and rounded. 



There is no dorsal gutter. 



The oesophagus is GTS/^.-SOO/^t in length and 300/y.-350/A Avide 

 at its broadest part. It is iiask-shaped, with the nerve I'ing at 

 the base of the neck portion. The oesophageal funnel is well 

 developed. The anterior end of the oesophagus is covered with 

 a cap of cuticle, which forms the floor of the mouth c.npsules and 

 is oblique from side to side. 



The cervical papilla? are 660/x-700/a from the anterior end of 

 the body and are situated halfway between the nerve ring and 

 the posterior end of the oesophagus. 



The excretory pore is slightly in front of the cervical papillae. 



Female. The jioster'or region is usually in a straight line with 

 the rest of the body, but may be bent slightly dorsally. It 

 tapers to the tip, Avhicli is rounded and rather knob-like. 



The vulva is l'6-2 mm. from the posterior extremity and 

 O'9-l mm. in front of the anus. 



The vagina is about O'G mm. in length. 



The eggs are 70yu-80yu, long by 50/A-5r)/x broad. 



2fale. The genital cone is small. More detailed examination 

 of it was not possible, as it was somewhat damaged in both males. 



Text-ficfure 5. 



Cjjliclinosfomum seht-ee, sp. ii. 

 Accessor^' piece of Male. 



An accessory piece is present. It is saddle-shaped with inturned 

 lateral margins. Its proximal end is bifid, each part ending in 

 a point. The spicules are thick and about 0*95 mm. in length. 

 Their distal ends seem to be simple points. 



One of the most striking characters of the male is the finely 

 serrate edge of the free margin of the bursa. This is a character 

 only described in C. jjoculaticm amongst tlie Cylichnostomes. 



The pre-bursal ray is short and the dermal collar small. 



