386 



ARTICULATA: WORMS. 



six feet. Trichina, about one thirtieth of an inch in 

 length, inhabits the flesh of man and of the hog and 

 other animals. The Hair-worm (Gordius), lives in the 

 bodies of insects while in the larva state, and in water in 

 the adult state. 



FIG. 521. 



Free, and encysted Trichinae, Trichina spiralis, Oweu. 

 a, c, Trichinae encysted in muscle: I, female and young. 



