LIST OF ILLUSTRATIONS. 



XXIU 



Bhahditis terricola, ..... 



Adult female and young, 



Embryo of, .... . 



Rhabdonema (Ascaris) nigrovenosum, Ehabditoid form of, 

 Rhabdonema nigrovenosum, Mature embryo of, . 

 Sarcoptes scabiei, ..... 



,, ,, . 



Scabies norvegica, Crust of, with mites, their borings, eggs, and excreta, 

 Sderostomum tetracanthum, encysted, 

 Scoleces ( x about 30), ..... 

 Spiroptera murina, Young form of, from the meal-worm, 

 Sporocyst and Redia, with CercariEe in the interior, 

 Strcmgylus filaria, Embryo of, . 

 Tcemia, Double joint of, with three sexual openings, 



Embryo of ( x 100), .... 



,, .... 



Tamia ccenurus ( x 10-15), .... 



Cephalic end of, with hexamerous symmetry ( x 25), 



Connection between the different parts of the female generative 

 apparatus in, .... 



Form of uterus in, .... 



Joint of, with excretory vessels and generative organs ( x 10), 



Larger and smaller hooks of ( x 280), 



Sexual organs of ( X 10), 



,, .... 



Tasnia crateriformis, Embryonal booklet of, from a bird, after v. Siebold 



(x 700), ...'... 

 Twnia eucumerina, . . . 



Cystioerooid of ( x 60), .... 



Cysticercus of, from the dog-louse, 



Head of, with rostellum and hooks in different stages of 

 contraction ( X 140), 



Proglottides of, in a sexually mature state ( x 20), 



Rostellum of ( x 140), .... 

 Tcsnia echinococcus ( x 10), 



Adult specimen of ( x 12), 



,, .... 



Generative organs of ( x 80), 



Sexual organs of ( x 100), 

 Tcenia elliptica, Recently formed egg of ( x 600), 



Sexually mature proglottis of, . 

 Tcenia flavo-punctata, after Weinland — . 



Ripe proglottides of, one barren ( x 40), 

 Tcenia marginata, Embryonic development of ( x 550), 



Eorm of uterus in ( x 6), 



Hooks of ( x 280), 



Recently formed egg of ( x 600), 

 Tcenia mediocaneUata (natural size), 

 Tamia nana ( x 18), 



Head of, with retracted rostellum ( x 100) ; (4) an isolated hook 

 (x 600), .... 



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