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Pisidium is a
genus of very
small or
minute freshwater clams known as pill
clams or pea clams,
aquatic bivalve molluscs in the
family Sphaeriidae, the...
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Pisidium conventus, the arctic-alpine pea clam, is a
species of
freshwater bivalve from the
family Sphaeriidae. The
small (2.2–2.8 mm.) s**** is oval in...
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Pisidium pulc****um , the
iridescent pea mussel, is a
minute species of pea clam, a
freshwater bivalve in the
family Sphaeriidae. The 3.5–4 mm s**** is...
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Pisidium amni**** is a
species of very
small freshwater clam,
sometimes known as the
greater European peaclam or the
River pea s****. It is an
aquatic bivalve...
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Pisidium casertanum, the pea ****le or pea clam, is a
minute freshwater bivalve mollusc of the
family Sphaeriidae. The s**** is broad, sub-triangular or...
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Pisidium moitessierianum is a
species of
small freshwater clam. It is an
aquatic bivalve mollusc in the
family Sphaeriidae. This
species is the smallest...
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Pisidium lilljeborgii is a
species of
freshwater bivalve from the
family Sphaeriidae. A
moderately swollen (tumid),
trapezoidal s****. The
umbos are just...
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Pisidium artifex is a
species of
freshwater clam in the
family Sphaeriidae. It is
endemic to Kenya,
where it is
known only from
Mount Kenya. It
lives in...
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Pisidium subtruncatum is a
species of pill clam, a
minute freshwater bivalve in the
family Sphaeriidae. The 2.7 – 4 mm s**** is
moderately tumid (swollen)...
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Pisidium stewarti is a
species of
small freshwater clam. It is an
aquatic bivalve mollusc in the
family Sphaeriidae, the
fingernail clams and pea clams...
