36 



ENTOZOA. 



abound, or even in bread, grain, and fruit. It is more probable, 

 however, that the larvge will be found in gasteropod mollusks 

 proper to the locahties from whence the adult flukes have been 

 obtained. 







i 



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■h 4 



ft 



i« * 



•»• 



/ ' 





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f 



t 



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i'lGr. 12.— Gastekostoma geacilesceks, • Wagener j from the intestines of the Angler (Lophius 

 piscatorms). X 60 diam. — Original. 



Gasterostoma. — In this singular genus the ventral sucker (Fig. 

 12) seems to have taken the position usually assigned to the 

 oral opening, whilst the latter is placed low down towards the 

 centre of the body. The digestive coeca also disappear, leaving 



