Most observed native fingernail clam
Native to the US, by how plants support them, most observed first.
Other species All
7 native species with no plant ties on record, most observed first.
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Grooved Fingernailclam
Sphaerium simile
875 observations
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Striated Fingernailclam
Sphaerium striatinum
792 observations
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Herrington Fingernailclam
Sphaerium occidentale
453 observations
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Long Fingernailclam
Sphaerium transversum
228 observations
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Rhomboid Fingernailclam
Sphaerium rhomboideum
111 observations
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River Fingernailclam
Sphaerium fabale
15 observations
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Arctic Fingernailclam
Sphaerium nitidum
8 observations