340 



THE AMERICAN NATURALIST 



[Vol. XL 



brown ones as they leave the cyst, I take to be their L. cinerea. In 

 as much as they had not seen any specimens ingest food and had 

 observed no encystment I am led to believe that what they studied 

 and described as two species were but different nutritive conditions- 

 of individuals of the same species. 



In November, 1904, Mr. Lapham observed a large colorless 



indivi.lnal .livid.- i,it<. .hniul.t^-r parts of protoplasm to each of 

 which tlu' too.! .•.iclosurv> luul hern .-.|iuillv .listril.utcd. In March, 

 190."), I ol)MTv.'(l one of the in.lividuals found living with Chlamy- 



rather slow. It began with the formation of two fan-shaped parts, 

 connected by a wide neck (Fig. 8). This neck became more and 



