THE OGCÜKllEXCE OF BOTHiüOCErHALUS LIGILOIDES LT. lo9 



la eftected ])r()b;ibly after the worm has ac(|uirecl a considerable .size. 

 The wandering into the orbit must- liave taken phice when it was yet 

 of small size, but whether as ho(^ked embrvo or as small larva it is 

 dithcult to sav. 



. As to how lonif the parasite mav exist in the liuman b«jdv, we 

 cidl attention to case \ 1, in which a worm caused the periodical 

 swelling" of tissues for nine years. In this connection it is to be noted 

 that Scheube's patient suitered hiemtituria more than live years Ijefore 

 the discharge of the worm from the uretlira. In cases I and II 

 either the swelling of the scrotum (said to be the consequence of 

 inguinal hernia) or gonorrhœa (?) with hœmaturia occurred five or 

 six years previous to the discliarge. It is of course impossible to say 

 what relati<)n, if any, existed between these symptoms and the worm 

 in these three cases. 



The preserved and much contracted specimens that came to our 

 view, do not allow anything definite to be stated of the configuration 

 of the larval cestode in (piestion. The head-portion of the worm iv- 

 preseuted in %. 4 has been cut into horizontal sections, one of which 

 is shown in ti<j. 6. The involution of the apex appeared in such sec- 

 tions as a narrow branched indentation, which was not \ery deep. 

 Neither the papilla-like ;ij)i(al projection seen by Leuckart (the partly 

 evaginated head) nor the two grooves characteristic of liothric^cephalus, 

 were obser\ able in any of the specimens. The lu'oadening near the 

 anterior end is a])parently the result of contraction. In general the 

 bodv seems, to iud^'e fn^m what we have seen, to broaden graduallv 

 toward the posterior end ( /ïV/.s r^-ô). 



The numerous wrinkles and folds (jn the surface are undoul)tedly 

 the effects of contraction and of tlie preserving Huid. Whether the 

 one or two more or less prominent longitudinal grooves or deju'es- 

 sions, which we have taken notice of in our descrij)tion of specimens, 



