EG(;S OF ROTIFER.S. ' 9< 



one about a two-hundredth of an inch long, pro- 

 tected by a carapace, and having a tail terminating 

 in a single style, hence called "Monostyle." There 

 is perhaps no class of creatures that present so 

 many curious and unexpected forms as the rotifers ; 

 and although we have noticed a good many, there 

 are far more that remain to be found and de- 

 scribed. 



The water in which the preceding animals dwelt 

 was enlivened by the jumps of the Halteria^ a little 

 globe surrounded by long fine cilia, with which its 

 movements were effected; and its companion was 

 the Aspidisca hjnceus^ an oval animalcule, having 

 a distinct cilia or lorica^ and furnished, in addition 

 to cilia, with bristles, which enable it to walk and 

 climb as well as swim. 



There were also some eggs of rotifers attached- 

 to the water-plants, in which motion could be de- 

 scried at intervals, and a little red eye observed. 

 These eggs are always large in proportion to the 

 creatures that lay them, and if they escape being 

 devoured by enemies, may be watched until their 

 contents step forth. 



In this, as in other months, omission is made 

 of creatures that have already come under notice, 

 or our list would assume larger dimensions. 



