390 SYNOPSIS OF THE T^NIADiE. 



indeed — at least T. cummerina — are only to be regarded as occasional 

 visitors. They are found exclusively in the small intestine, which 

 they share with two Bothriocephali — B. latus and £. cordatus. 



But it is not only adult Cestodes which are found in man. He 

 also harbours a number of Tsenioid bladder-worms, viz., Cysticercus 

 cellulosce (of T. solium), Cysticercus acanthotrias (of T. sp. ?), Cysticenus 

 tenuicollis (of T. marginata) — though this is not beyond doubt — and 

 the Bchinococcus (of T. echinococcus). Some of these grow to a very 

 considerable size, and occasion manifold dangers, from which hardly 

 any organ is exempt. Specially important, however, are the 

 Echinococcus, Cysticercus cellulosce. Taenia saginata, T. solium, and 

 Bothriocephalus latus. 



The following synopsis shows the systematic arrangement of the 

 forms treated of in the present volume : — 



Family T^NIAD^. 



Genus TiENlA. 



Division I. — Cystici. (Cystic Tape-worms.) 

 Sub-genus Cystotcenia, Leuckart. 



1. Tcenia saginata, Goze (Tceniarhynchus, Weinland). 



2. Tcenia solium, Rudolphi {Cystotcenia sensu stricto). 



3. Tcenia acanthotrias, Weinland. 



4. Tcenia marginata, Batsch. 



Sub-genus Uchinococcifer, Weinland. 



5. Tcenia echinococcus, v. Siebold. 



Division II. — Cystoidei. (Ordinary Tape-worms.) 

 Sub-genus Hymenolepis, Weinland. 



6. Tcenia nana, v. Siebold. 



7. Tcenia fiavo-punctata, Weinland. 



Sub-genus ? 



8. Tcenia madagascariensis, Davaine. 



Sub-genus Diphyllidiiim, Leuckart. 



9. Tcenia cucumerina, Eudolphi. 



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