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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
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What are diatoms?
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GCM35213_02.jpg
Species
Planothidium biporomum
Site ID
ANSP GCM3521(3)
Name
Savannah R., GA, st.3
Caption
External view of a raphe valve
Scalebar = 5 µm
