248 



ENTOZOA. 



In connection with these views of Weinland and Leuckart, I 

 may here mention that I have fed a number of cockroaches {Blatta 

 orientalis) with the eggs of Toenia cucumerina of the dog, but I 

 have not succeeded in rearing any cysticerci in their bodies. Not 

 discouraged by negative results (which often advance our science 

 as much as positive ones), I yet purpose to feed some of these 

 insects with the eggs of T. ellvptica from the cat ; and if I should 

 succeed in thus giving the cockroaches the "measles," I shall 

 then have less hesitation in pronouncing Leuckart's opinion, as 

 to the distinctness of these two tapeworm-forms, correct. 



16. TiENIA MAEGINATA. 



T. marginata, Batsch, Eudolphi, Dujardin. 



T. cucurhitina, Pallas ; Bloch, 



T. hijpina, Schrank. 



T. cateniformis lupi, Goeze. 



T. ex cysticerco tenuicolli, Kiichenmeister. 



T. tenuicollis, Giinther; Moquin-Tandon. 



T. hydatigena, Pallas ; Bloch. 



T. hydatula, Linneus. 



T. glohosa, Eudolphi ; Gmelin. 



T. simicB, Gmelin. 



T. ferrarum, Gmelin. 



T. caprina, Gmehn. 



T. ovilla, Gmehn. 



T. vervicina, Gmelin. 



T. bovina, Gmehn. 



T. apri, Gmehn. 



JEalysis marginata, Zeder. 



This species infests man only in the immature or cysticercal 

 condition, the full-grown tapeworm (strobila) being found in the 

 dog and wolf. It has often been confounded with the Tcenia 

 serrata, from which, however, it diflFers in the comparatively bulky 



