Microscopical Essays. 341 



The little mufcle d is fattened on one fide to thefirftfpiraculum, 

 and on the other fide, a little lower to the intermediate inferior 

 and the lateral line ; it feems to be the antagonift of P, which 

 opens the fpiracula* 



The lateral mufcles /3 ^ are very well feen in this figure ; the 

 pofterior fixture of I is under the mufcle C, near the flan of the 

 neck ; /3 is fixed a little on the other fide of C, at the middle of 

 the ring. 



Second Ri n g» 



Three galtric mufcles, g, h, i, appear here ; g and h are fixed 

 at the folds which terminate the ring ; i has only its anterior, 

 fixture there. 



h is triple ; in one of the divifions it, is feparated into two 

 parts. 



i approaches more the inferior line, and is fixed a little beyond 

 the middle of the ring, where the fimilar mufcle on the oppofite 

 fide is forked to receive it 



Third Ring. 



h, which was triple in, the preceding ring, is double here 5 

 that part which is nearer! the inferior line is the broadeft ; it has 

 three tails, of which only two are vifible. 



The 



