20 'J 



DR. M. KDALIL ON THE NEMATODE 



Cervical j)ci2nllai. — These are long and tliin. They aie placed 

 •92 mm. from the cephalic end of the body. 



Mouth cajjsule. — The mouth cajDSule is pear-shaped. It is longer 

 than it is broad. It is "093 mm. long and -065 mm. in maximum 

 diameter. The chitinous plate forms the wall of the posterior 

 half of the mouth capsule, and a funnel-like extension of it forms 

 the wall of the anterior portion. The chitinous plate is "06 mm. 

 long ; its upper end is shnTply cut in an oblique direction. From 

 the posterior end of this chitinous ring project a series of sharp 

 teeth-like processes overhanging the opening of the oesophagus. 



(Esojihayus. — There is a broad, shallow cesophageal funnel 

 bordered by a thick cuticular edge. The length of the ossophagus 

 is •45 mm. in the male and '57 mm. in the female. Its maximum 



Text-figure 48. 



-H 



PteridopJiarynx anisa Klialil. Ventral view of cephalic end of body, 



diameter is -14 mm in either sex. There is hardly any constric- 

 tion at the site of the nerve collar. 



Chyle intestine. — The beginning of the chyle intestine overlaps 

 the cesophagus. It pursues a straight course to the rectum. The 

 cellular lining of its w^alls is pigmented in its n}iddle. The lumen 

 narrows before joining the lectum. 



i?eciitm.— This has a wide funnel-shaped cavity in the female. 

 It has a thin cuticular lining in contradistinction to the thick 

 cellular wall of the intestine. The caudal end of the rectum 

 narrows to a short narrow anal canal, the opening of which is 

 surrounded by a slightly raised lip. 



Excretory pore. — The excretoiy vesicle is a small fusifoi-m sac, 

 with a short duct opening •87 mm. from the cephalic end on the 

 ventinl surface. 



