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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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What are diatoms?
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NCPA0044_06_ed.jpg
Species
Psammothidium bioretii
Site ID
ANSP GCM4259
Name
Engle Run, PA
Caption
external view of raphe valve
Coordinates
41.42078, -76.80802
Scalebar = 2 µm
