SEA-FISHERIES LABORATORY. 79 



The worm is represented in fig. 1, p. 79. The pre- 

 servation was not good, and there is evidently some 

 distortion. Bearing this in mind there is a close similarity 

 between my figure and Nicoll's. The oesophagus and 

 intestinal rami were not seen. The anterior part of the 

 animal is greatly contracted, so that the cirrus-pouch and 

 vesicula seminalis, which lay immediately in front of the 

 ventral sucker were not seen clearly enough to be figured. 



7es/es Yolk 



Reservoir I 



Vitelline I 

 duct | 

 flecep tacu/u m semin/G 



Fig. 1. Lebouria idonea, Nicoll. Mag. 63 dia. 

 The testes are very prominent and are placed about half- 

 way between the posterior margin of the ventral sucker and 

 the extremity of the body. They are elongated transversely 

 and have very much the same proportions and appearance 

 as in Nicoll's figure. The vitellaria are very conspicuous, 

 more so than in Nicoll's specimens. They lie along each 

 side of the body and behind the testes, with a few follicles 

 extending in front of the ventral sucker. The vitelline 

 ducts were also made out very clearly. The two efferent 

 portions pass transversely towards the centre of the body, 



F 



