110 ILUNOIS BIOLOGICAL MONOGRAPHS [230 



EXPLANATION OF PLATE 



Paragordius varius 

 Fig. 140. — Cross section thru posterior end of male at time of formation of adult cuticula; 



X 365. 

 Fig. 141. — Section thru posterior region of young male; X 375. 

 Fig. 142. — Section of same specimen; shows sperm ducts entering cloaca; X 37S» 

 Fig. 143. — Section thru cloaca of same specimen; X 375. 

 Fig. 144. — Section thru same specimen at base of prongs; X 375. 

 Fig. 145. — Yoimg parasite; cross section; X 500. 



