BOTHKIOCEPHALUS LATUS. 



291 



(laterally) in space. It does not appear to have been seen in any 

 non-European country, except in those instances where individual 

 bearers have carried the worms away with them into foreign lands. 

 Thus, Weinland, when recording his observations on the occur- 

 rence of Bothriocephalus latus in the American states, amusingly 

 says, " We have seen two specimens of this worm in this country. 



Fig-. 62. — Head of Bothriocephalus latus ; a, front view, showing the neck and anterior immature 

 segments ; 6, lateral view, displaying one of the bothria. (Considerably enlarged).— Knoch. 



The first was expelled from a Swiss soon after his arrival. The 

 second was from an Englishman, in Richmond, Va., who had, per- 

 haps, travelled in Switzerland, and, hke the Grerman anatomist 

 and physiologist, Soemmering, and many other travellers, brought 

 away with him this vade-mecum from the land of William Tell. We 



