Bloom Native gardener's
field companion

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  1. Life
  2. Animals
  3. Mollusks
  4. Bivalves
  5. Sphaeriida
  6. Pea Clams
  7. Sphaeriinae
  8. Fingernail Clam

genus

Fingernail Clam

Sphaerium

Includes
6 native 1 introduced
Where
In the US
Source
iNaturalist

Field notes

Children

  • Grooved Fingernailclam native
  • Striated Fingernailclam native
  • European Fingernail Clam introduced
  • Herrington Fingernailclam native
  • Long Fingernailclam native
  • Rhomboid Fingernailclam presumed native
  • Rocky Mountain Fingernailclam
  • River Fingernailclam presumed native
  • Arctic Fingernailclam native

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Most observed native fingernail clam All

Native to the US, by observations.

  • Grooved Fingernailclam Sphaerium simile 875 observations
  • Striated Fingernailclam Sphaerium striatinum 792 observations
  • Herrington Fingernailclam Sphaerium occidentale 453 observations
  • Long Fingernailclam Sphaerium transversum 228 observations
  • Arctic Fingernailclam Sphaerium nitidum 8 observations

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