SEA-FISHERIES LABORATORY 



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intestines of several specimens. The characters of these 

 worms agree closely with those of D. vitellosum, a species 



-Oral, 

 Sucker 



r~~Pharyrac 



■Cirrhus 



llsr Uterus 



-Rece^taculum 

 S e m 'i n I s 

 "Ovary 



"Vitellarium 

 "Testis 



"Testis 



^Vitellaria 



Fig. 15. Distomum vitellosum. x 70 dia. 

 described by Linton from the American hake (Merluccius 



