 
 
|  Genus: Body elongated; with silicious scales and often spines; two chloroplasts rod-shaped 
(Kudo, 1966). Species: 
 
 | 
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Mallomonas papillosa, 
cell body 23 μm long, 15 μm wide, spines 18 μm long, 
x 400, x 640, Handa-numa (marsh), Otawara city, Tochigi Pref., Japan, January 5, 1999 by Y. Tsukii
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
