120 



DESCRIPTION OF PLATE IV. 



THE LTMNIAS, OR WATER-NYMPH. 

 ( PAGE 58. ) 



[The Figures highly magnified.'] 



A group of eight individuals of the Horn wort Limnias, (Limnias cera- 

 tophyllf), is here represented. 



a, The animalcule entirely withdrawn into its tubular case. 



b, The rotatory organs and cilia fully expanded in the parent ani- 



malcule, within the sheath of which several eggs, (c, e,), may 

 be distinguished. 



The animalcules are represented in different states of protrusion and 

 expansion from their tubular cases, or sheaths. 



