OUR DOMESTICATED ANIMALS. 



41 



of zooids, or individualised creatures, linked together in 

 single file. In short, they form a true colony of incom- 

 plete individuals ; all of them budding from the head, 

 and extending in one direction. This accounts for their 

 singular tape-like shape : and, in order to afford some 

 notion of this peculiar character, I have here caused an 

 ordinary beef tapeworm to be drawn, reduced to exactly 

 one-sixth of its natural size (Fig. 1 0) . This is an accurate 



Fig. 10. Beef Tapeworm (redcjced to one-sixth). 



representation of a specimen measuring thirteen feet in 

 length. It is taken from a photograph sent to me by 

 Dr. Fock, of Utrecht, who is the author of a popular 

 pamphlet on tapeworms (" De lintworm en het middel 

 om hem uit te drijven"). Such a specimen as the one 

 here figured numbers about 1200 joints or segments, 



