35 



NEMATODA 



NEMATODA. 



i. Ascaris lumbricoides. Female dissected. (Esophagus; intestine; vagina dividing to form 

 the two uteri, which pass backwards to the hind end of the body where they bend round and 

 are continued forwards as the slender oviducts. The oviducts soon become continuous with the 

 convoluted ovaries. 



Male dissected. (Esophagus, intestine as above (hind end of intestine pinned on one side) ; vas 

 deferens passing into testis a convoluted tube; copulatory spicules in sheaths. 



