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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
About Us
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What are diatoms?
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ncpa0116_56_ed.jpg
Species
Psammothidium helveticum
Site ID
ANSP GCM4331
Name
Little Morris Run
Caption
external view of rapheless valve
Coordinates
41.55326, -77.52821
Scalebar = 2 µm
