118 ILUNOIS BIOLOGICAL MONOGRAPHS ?23» 



EXPLANATION OF PLATE 

 Paragordius tarims 

 Fig. 170. — Cross section thru body of yoxmg female; ovarian buds not yet formed; X 500. 

 Fig. 171. — ^Frontal section thru upper end of cloaca of young female; X 115. 

 Pig. 172. — Cross section thru body of female; dorsal part of section; be^nning of formation 



of adult cuticula; structure of dorsal part of mesenteries; X500. 

 Fig. 173. — ^Ventral part of same section as Fig. 172; X 500. 

 Fig. 174. — Cross section of male at beginning of formation of adult cuticula; X 375. 



