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AN ELEMENTARY TEXT-BOOK OF BIOLOGY. 



MORPHOLOGY AND PHYSIOLOGY. 



The tapeworm is bilaterally symmetrical and made up (c/.Fig. 9) 

 of a minute scolex (head and neck), about ^ of an inch long, and 



a body some six to ten feet in length, consisting of 800 to 900 

 joints (proglottides), which near the scolex are extremely small 



