NOTES ON DISTOMà ENDEMIOUM. 



59 



EXPLANATION OF FIGURES. 



6?-., brain. 



ex., median excretory vessel. 



int., intestine. 



I, c, Luurer's canal. 



0., dorsal opening of Laurer's 



canal. 

 ce., œsopliagua. 

 0. s., oral sucker. 

 ov., ovary. 

 ph., pharynx. 



p. ex., excretory pore. 



s. r,, seminal receptacle. 



sh. g., sliell-gland. 



t., testes. 



ut., litems. 



V. d., vasa deferens. 



■vit., vitellarima. 



vît. d., efferent duct of vitcllarhim. 



V. s., ventral sucker. 



Fig. 1. Distomum endomicuin Baelz, magnifled 12 times. Sean 

 from the dorsal side. 



Fig. 2. Female se::nal organ, lialf-diagramaticallj represented. 

 Seen from the dorsal side, 



Vig. 3. An egg, containing an embryo. Magnified G40 times. 



Fig. 4. En embryo, examined in weak acetic acid. Magnified 

 640 times. 



Fig. 5. Distomum endemicum, natural size. 



