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Zooid of Opercularia coarctata (CLAPARÃDE & LACHMANN, 1858) ROUX, 1901. Collected from an ephemeral puddle on a flood-irrigated lawn in Boise, Idaho. July 2007. DIC.
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Opercularia coarctata (CLAPARÃDE & LACHMANN, 1858) ROUX, 1901. Collected from an ephemeral puddle on a flood-irrigated lawn in Boise, Idaho. July 2007. DIC. Collected from an ephemeral puddle on a flood-irrigated lawn in Boise, Idaho. July 2007. DIC.
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Opercularia coarctata (CLAPARÃDE & LACHMANN, 1858) ROUX, 1901. Collected from an ephemeral puddle on a flood-irrigated lawn in Boise, Idaho. July 2007. DIC.
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in vivo portrait of Opercularia nutans (EHRENBERG, 1831) STEIN, 1854.Phase contrast.
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Opercularia nutans (EHRENBERG, 1831) STEIN, 1854.DIC.
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Detail view of the stalk of Opercularia nutans (EHRENBERG, 1831) STEIN, 1854. DIC.
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Contracted zooids of Opercularia nutans (EHRENBERG, 1831) STEIN, 1854.DIC.
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Originally described by Ehrenberg under the name Epistylis nutans.
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Opercularia (owe-perk-you-lair-ee-a) penardi is attached by a short non-contractile stalk to the substrate. The cells are contractile and retracted individuals have a folded pellicula. The macronucleus is band-shaped. This specimen was collected in freshwater ponds near Konstanz, Germany. nDifferential interference contrast.