244 



S. VOSIIIDA : 



Musculature. — Some longitudinal muscle fibers run directly beneath 

 the cuticula in an interrupted layer, presenting an appearance of 

 discontinuous and widely isolated longitudinal streaks. They are 

 distinctly visible in fresh specimens and are most conspicuous in the 

 anterior parts of the worm, to which they give a very characteristic 

 appearance. 



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