160 Wisconsin Academy of Sciences, Arts, and Letters. 
TEANS. WIS. ACAD., VOL. XXI PLATE IH 
12. Ascaris lucii new species; anterior end. 
12a. Ascaris lucii new species; posterior end. 
13. Cystidicola serrata (Wright); anterior end. 
13a. Cystidicola serrata (Wright); posterior end of male. 
13b. Cystidicola serrata (Wright); posterier end of female. 
13c. Cystidicola serrata (Wright); egg. 
