286 



Memoirs of the Indian Museum. 



[Vol. VII, 



(fig. 21, i.) are almost as long as the lips, and are bifurcate at the tip. There are no 

 cervical alae. The distance from the head-end to the posterior end of the oesophagus 

 (including the small, almost globular ventriculus) is 2*2-2*5 mm. The ventriculus 

 measures o*i8 mm. in length and 024 mm. in width. The oesophageal appendix is 



O'lmm. 

 Fig. 21. — Contracaecum schizothoracis. Head of female 



i., interlabium. 



dorsal view. 



about 0*6-0 7 mm. long, and the intestinal caecum runs forward to a point about 0*5 

 mm. from the head-end. The prominent cervical papillse and the nerve-ring are 

 situated at 0*3-0*4 mm. from the anterior end. The position of the excretory pore 

 was not made out. 



Fig. 22. — Contracaecum schizothcracis. Tail of male ; lateral view. 



The tail in both sexes is short and bluntly conical. In the male, it is 0*12 mm. 

 long and has no alae. The spicules are very long (at least 5*5 mm.) and provided 

 with broad alae. Their length could not be accurately measured owing to the whole 

 of the extruded portion being thrown into spiral coils. Their dorso-ventral diameter 

 is about 0*035 mm. There is a regular series of about 23 pairs of small preanal 



