SEA-FISHERIES LABORATORY. 



285 



situated on the course of this transverse duct, and near to 

 it is a small rounded body, which is probably the recepta- 

 culum seminis. The ovary itself is a globular structure. 

 The testes are two in number, and are situated at about 

 the posterior third of the body. The cirrus pouch and 

 seminal vesicle lie behind the ventral sucker, and the 

 cirrus runs forward to open near the posterior margin of 

 the pharynx, about halfway between the ventral and the 

 oral suckers. The female genital aperture is situated close 

 to that of the male organs. 

 Distomum mollissimum, Levinsen.* 



From intestine of Belone vulgaris, Foulney Island, 

 1906. 



NTESTINE 



Fig. 1G. Distomum mollisivium. x 50 dia. 



*Oversigt d. k. Danske vidensk. Selskab Forh. No. 1, Tab. 1, 4. 

 Kjobenhavn, 1881. 



