TAPE-WORMS OF THE Slli-FAMILY AYITELLININ.K. 



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meaning more clear. Fig. 4 shows the course of six muscles 

 composed of bundles of four; one sees the sections of the 

 dorso-ventral muscles separating the bundles. Text-figs. 5 and 

 6 have been drawn to show that it is possible to obtain 

 transverse sections giving the appearance of bundles, but that 



Text-fig. 8. 



Horizontal section through the longitudinal mnscle. Al>ont nme or 

 ten segments are included in the photograph. 



in each case the bundles at the levels a, h, c, d are differently 

 composed. Thus at level a, 1, 2, 3, 4 form the first, 5, 6, 7, 

 8 the second, 9, 10, 11, 12 the third bundle, etc. At level h, 

 2, 3, 4, 5 form the first, 6, 7, 8, 9 the second, 10, 11, 12, 13 

 the third bundle. By the time level e is reached not a single 

 fibre forming the first bundle is the same as at level a. The 



