84 ILLINOIS BIOLOGICAL MONOGRAPHS [364 



LIST OF NEW SPECIES 



PAGE 



Alassostoma magnum 66 



Alassostoma parvum 69 



Poly stoma megacotyle 37 



Poly stoma microcotyle 39 



Poly stoma opacum 34 



Poly stoma orbiculare _ 31 



Zygocotyle ceratosa 72 



A preliminary description was given in the Journal of Parasitology, 

 3 :21-27. 



