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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
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What are diatoms?
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NCPA0116_28ed.jpg
Species
Psammothidium pennsylvanicum
Site ID
ANSPGCM4331
Name
Little Morris Run, Pennsylvania
Caption
External view of rapheless valve
Coordinates
41.55, -77.53
Scalebar = 2 µm
