12 Transactions of the Society. 



containing numerous small nuclei and not a single large nucleus as 

 in the allied Amoeba. It appears to me, however, that it is in reality 

 composed of a number of nucleated cells loosely held together. What 

 have been taken for vacuoles seem to me to be the delicate translucent 

 cells, the nuclei alone of which are visible in the entire animal, 

 especially when unstained. These cells are about the size of a white 

 blood-corpuscle. Prof. Lankester suggests to me that they, with their 

 nuclei, may be swarm-spores ; and though I feel inclined to regard 

 them as the permanent arrangement of the protoplasm, and to look 

 upon the animal as one of those Protozoa which have been described 

 as multicellular, yet without examining other individuals to see how 

 far the structure is permanent, it would be premature to speak 

 definitely. 



