WORMS. 



477 



and b a group of three as actually discharged from the intestine of 

 a dog in -which they were thus knotted. I have often seen from 

 six to a dozen round worms thus collected together, so as when 

 discharged to form a solid mass as large as an egg. Like the last 

 species they are propagated by ova, but sometimes these are 

 hatched in the body of the parent, so that a large worm may be 



Fig. 4. 



Fig. 3- 



seen full of small ones. This species occasions much more incon- 

 venience than the maw-worm, but still far less than the tape- 

 worm. 



Tape-worms in the dog are described by foreign writers as of 

 five kinds, of which the Taenia solium and Bothriocephalus latus are 



