ABSTRACT AND REVIEW. 



93 



Alga, Urococcus Hookerianus, also occurs. It is mentioned 

 by Geddes, but supposed by him to be a stage in the deve- 

 lopment of Chlamydomyxa j be figures it in his figs. 3, 4, 5 a, 

 and 5 b. There is, however, no genetic connection between the 



Tig. C. — A labyrinthine amoeba dividing into several parts simultaneously. 



two forms. His fig. 2 is a true Protococcacean, also often 

 found with the other two. 



In Chlamydomyxa the nuclei are of a different shape, smaller 

 size, and much greater number than they are in Urococcus ; 

 the latter is also much more easy to cultivate. 



With regard to Chlamydomyxa itself, we have to attempt 

 an answer to the following questions : 



