Notes on a New Boveria species. 25 



of the synkarion. 



5. The megaiiQcleus often undergoes fragmentation, leading 

 to its partical degeneration. The phenomenon seems to support 

 Hertwig's karyoplasm theory. 



5. The meganucleus is occasionally seen thi*owing off a portion 

 of its chromatin as chromidia, which sooner or later disappear in 

 the cytoplasm. 



7. Two sorts of cysts may arise according to the circum- 

 stance of the encystment. In the one, the ciha persist, but in a 

 highly modified state, and the cyst contents appear as a roundish 

 polynucleate plasmic mass ; in the other, the cilia are lost, and 

 the cyst contents appear as a highly reticulated body consisting 

 of the polynucleate plasm. 



Zoological Laboratory, 



High Normal School, Hiroshima, 

 June, 1916. 



Published May 2Sth, 1918. 



