NBMATODA. 



287 



connective tissue, partly with the aid of the currents of blood, into the striped 

 muscles of the body. They pierce the sarcolemima and penetrate into the 



FIG. 235.Ti-ii-h'nri spirals, a, mature female Tri<:Jilna from the alimentary canal ; G genital 

 opening ; E embryos ; .' ovary, b, male ; Ttestis. c, embryo, d, embryo which has migrated 

 into a muscle fibre, already considerably enlarged, e, the same developed into a coiled Muscle 

 Trichina, and encysted. 



