42 



BRANCH NEMATHELMINTHES 



cmbr- 



Fig. 32. Larvae of Trichinella spiralis in mus- 

 cle, not yet encysted ; enlarged. (Leuckart .) 



Fig. 33. Piece of pork showing larva? of 

 Trichinella spiralis encysted in the muscle- 

 fibers; natural size. (Ostertag.) 



Fig. 31. Trichinella 

 spiralis. Adult female, 

 showing embryos, emb., in 

 uterus; gp., genital open- 

 ing through which the 

 embryos are discharged; 

 enlarged. (Leuckart.) 



Fig. 34. Encysted larva of Trichinella spira- 

 lis; enlarged. (Leuckart.) 



