294 RECENT RESEARCHES IN THE DIATOMACEZ. 
plate will be projected in a direction inclined to the plane of its acute- 
angled side 
ensues. The daughter-cells at first lie in the longitudinal axis of the. 
cell, and then after a time assume their natural position. 
Ceratonets, Ehr. 
the norm iteschi@, with a single endochrome-plate lying on one 
gird] ma, (Brib.) Priteh., exhibits 
Baeillaria. 
_ The single cells of Bacillaria paradoxa, Gmel., have likewise a 
single endochrome-plate covering one girdle-band ; nevertheless in the 
greater number of the cells of a colony the endochrome-plate appears 
receive the single species = Eunotia arcus, W. Sm., in which he is 
0 of. H Smit 
