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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
About Us
News
Projects
Review Board
Taxon Contributors
Contact Us
What are diatoms?
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Craticula_1_L_9_62.jpg
Glossary Term
Craticula
Caption
High level of focus showing parallel striae of the normal valve.
Credit
Sarah Spaulding
