CESTOIDEA. 25 



Variety or Species C. Tcenia of the Cape of 

 Good Hope (Kiichenmeister). 



The scolex of this worm is unknown, the posterior 

 part of the strobile having alone been observed ; its 

 rings are thick and long, and are furnished, through- 

 out the whole length of the body, with a longitudinal 

 ridge ; the genital pores are marginal and alternate ; 

 in some respects (the many-di'S'isioned uterus and 

 the ova) it is similar to the T. inermis. 



Variety or Species D. Tcenia of the Tropics. 

 (Bothriocephalus Tropicus, Schmidtmtiller). 



This is a cestoid worm, whose characteristics have 

 not yet been fully determined ; Schmidtmuller 

 (quoted by Van Beneden) states that he observed it 

 in one half of the negroes who were brought to the 

 West Indies, and in some Europeans who had visited 

 the coast of Guinea. 



TfBuia Nana (Bilharz). 



This is a small cestoid worm, the whole length of 

 which is only from about one-half to four-fifths of an 

 inch (whence its name from the Latin Nanus, a 

 dwarf) ; its body is filiform and flattened ; the head 

 is broadest in front, and becomes gradually narrower 

 towards the neck ; the suckers are of a sub-globular 

 shape; the rostellum is pyriform, and armed with a 

 circlet of bifid hooks ; the breadth of the rings is 

 greater than their length. 



This species of taenia has been found once by 

 Bilharz, in a very considerable number, in the 

 small intestines of a young man who had died of 

 meningitis. 



