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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
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Glossary
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News
Projects
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What are diatoms?
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gs027563_05_ed.jpg
Caption
SEM internal view of
Karayevia
. The proximal raphe ends are straight. Internal proximal fissures are absent.
