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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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PinnulariaBirnirkiana_SEM1_PF22a__004.jpg
Species
Pinnularia birnirkiana
Site ID
Patrick and Freese site 22
Name
Pool near Point Barrow Camp, Alaska
Caption
External valve view
Scalebar = 10 µm