134 ANIMAL PARASITES. 



however, people began to think that the broad tape-worm of 

 previous authors was only Boihriocephalus latus, and that there 

 was no second large species of Taenia inhabiting the human body. 

 Opinions, such as that of Schmidtmiiller, who, I am sorry to say, 

 gave me no information in answer to my inquiries on this subject, 

 and that of Nicolai, who mentions this Tcenia in the following 

 words, 1 " capite inermi aculeato sessili, articulis dilataiis brevioribus, 

 marginis utriusque medio latiore, alternis osculato, majoribus 

 transverse striatis, emarginatis" met with just as little attention 

 as the hints which occur in various reports of travels with regard 

 to this Tcenia. Thus Tutschek (in the < Ausland/ No. 2, for 

 1853) mentions the occurrence of a broad tape-worm (Tcenia 

 lata = ndaJcan) in Turn ale, in Africa. Four years ago I found 

 this worm in Zittau, and saw it myself in five patients amongst 

 others ; I also saw it in a woman from Bremen and a man from 

 Lubeck. Twice I had the opportunity of seeing fragments of it, 

 through Professor Richter, of Dresden, and three times through 

 Dr. Zenker. I saw mai^ examples at Madame Heller's, in 

 Hamburgh, and afterwards received two perfect specimens from 

 her. Gurlt, of Berlin, received a specimen through his son from 

 LangenbecVs Hospital, and Professor Leuckart saw another in 

 Giessen. In short, as to the existence of this species, which Van 

 Beneden, Eschricht, and J. Miiller have recognised from my 

 preparations, there can no longer be any doubt amongst those 

 who institute exact comparisons and examinations. If any doubt 

 should still prevail in the determination of the species, it is as to 

 whether a third large species of Taenia, besides T. solium and 

 T. mediocanellata does not inhabit the human intestine. So 

 much for historical introduction. If the head of this Taenia did 

 not resist attempts at expulsion with such extraordinary obstinacy 

 it would long since have been recognised. 



Tsenia matura. Species longissima (ad 12 14 ulnas longa] 

 latissima, crassissima. Capite inermi, permagno, ad 2 millim. lat., 

 valde nigrescente, acetabulis 4 permagnis (ad 0'367 //x = 0*829 

 millim. long, et O259"' = 0*711 millim. usque lat.) 



Systemate vasculoso : in capite simpliciore, quam in T. solium ; 

 corpor. calcar, ad 0'012 millim. in capite, ad 0'018 millim. 

 inarticulis magnis, magisque numerosis } quam in T. solium. 



1 Neuer Zeitscbrift fur Natur und Heilkunde, Von Ammon, Choulant und Ficinus, i, 

 p. 464. 



