Bacillariophyceae: Pennales: Raphidineae
Nitzschia acicularis
(Kützing) W. Smith
 
Genus: 
 
Species: 
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Nitzschia acicularis (Kützing) W. Smith, 
cell body 57 μm long, 4 μm wide, 
x 640, Tama river, Chofu city, Tokyo, Japan, February 24, 2004 by Y. Tsukii
 31 μm
 63 μm
 94 μm; x 640
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