40 OF THE PRINCIPAL WORMS 



ments,fll3) which render it laiiuginous, or downy. 

 Beginning with the narrowest part of its body and 

 proceeding to the tail, the surface of each ring is 

 made distinct by farrowed lines(li4) which, if ex- 

 amined with the microscope, present a cord of 

 three lines. (115.) 



Both lateral margins of each ring are provid- 

 ed with a perforated papilla leading to the ovaria, 

 inclosed within the substance of the above mention- 

 ed rings.(ll6) 



§. XXII. In the centre of each ring we discov- 

 er the ovaria, uniting in a nodus of an oval fig- 

 ure,(ll7) and pointed at one extremity. These 

 ovaries, grouped together, were taken by Bonnet 

 for so many glands, to which he gave the name of 

 blossomed fields.(118) 



On the superior part of each ring opens a small 

 round canal corresponding with the centre of the 

 ovaries. 



Pallas asserts that the worm deposites its eggs 

 through this canal. (119) It is possible that the 

 opening of the marginal papillae may serve as the 

 male sex of the worm, as well as to suck in nutri- 

 ment, as we said of the armed taenia. From the 

 great difficulty of procuring this worm among us^ 

 eitlier living, or in a fresh state, we have not yet 

 been able to pursue the various researches neces- 

 sary to obtain an exact knowledge of its internal 

 structure. 



