342 



Microscopical Essays. 



The mufcle i is exactly fimilar to that of the preceding ring, 

 and is eroded in the fame manner by the mufcle from the oppouic 

 fide of the ring. 



The eight following Rings. 



The mufcle f, in all thefe rings, is very broad and ftrong ; 

 the anterior fixture is at the intermediate inferior line, on the fold 

 of the firft divifion of the ring ; the other fixture is beyond the 

 lower divifion, with this difference, that at the loth and nth 

 rings the fixture is at the laft fold of it's ring ; whereas in the 

 others it paffes over, and is inferted in the (kin of the following 

 ring. 



In all thefe rings the firft extremity of g is fattened to the fold 

 which feparates the ring from the preceding one, and is parallel 

 to % and placed at the fide of it. 



The fix firft, g, are forked ; that of the fourth ring is very 

 much fo ; it does not unite till it is near it's anterior infertion. 

 The longeft tail lays hold of the following, and is inferted near 

 the inferior line ; the other inferts itfelf near the fame line, at 

 about the middle of it's own ring. 



The two laft, g, do not branch out, but terminate at the di- 

 vifions without reaching the following ring. 



The mufcle h is placed at the fide of f, has nearly the fame 

 direction, and finifhes at the folds of the ring. 



Ante 



