PLANARIA FELINA. 49 



however, and the like never recurred. 

 Yet I confess myself inclined to believe 

 that these planariae are perpetuated by 

 eggs, notwithstanding I have not been for- 

 tunate enough to obtain the parent animals 

 at the proper period, or to seize the mo- 

 ment of production. 



On removing a quantity of plants fre- 

 quented by this species into a glass jar, and 

 filling it with water, the observer will soon 

 discover many planariie, complete and per- 

 fect in all their parts, vivaciously traversing 

 the sides of the vessel. But others he will 

 also distinguish, exhibiting strange and un- 

 seemly mutilations. The tip of the tail, or 

 a large portion of the body, is wanting ; the 

 structure of the head itself is impaired ; 

 distorted stumps are united to regular or- 

 gans, and the colour of one part apparently 

 denies its continuity with another. In re- 

 peating his examination, the observer will 

 next find several shapeless fragments, un- 

 like any thing he has previously beheld, 

 adhering motionless to the bottom and sides 



