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Pyxidiella spec. Specimen of Pyxidiella living on an Oligochaet in the vicinity of each bundle of chaete. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Hiddensee Bodden (Germany) Latitude: 54.582633 Longitude: 13.115051 Pyxidiella-Zellen leben auf einem Oligochaet (Wenigborster) in der Nähe jedes Borstenbündels. Probe aus dem Hiddenseer Bodden, der Brackwasserfläche zwischen den Inseln Hiddensee und Rügen. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Portrait of the sessile solitary peritrich ciliate, Propyxidium (Corliss, 1979). The zooid is an elongate inverted bell shape. The short stalk is noncontractile. There is no distinct peristomal lip (unlike the similar Rhabdostyla). The prominent tilted peristomal disc is elevated on a broad stalk. The C-shaped macronucleus is transversely oriented (the two ends of the macronucleus are seen in cross-section here).The single contractile vacuole is in the posterior half of the cell. Propyxidium replaced the preoccupied Pyxidiella. Collected from a freshwater pond near Boise, Idaho. Brightfield illumination.
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Portrait of the solitary peritrich ciliate, Propyxidium (Corliss, 1979). The zooid is an elongate inverted bell shape. The short stalk is noncontractile. There is no distinct peristomal lip (unlike the similar Rhabdostyla). The prominent tilted peristomal disc is elevated on a broad stalk (seen well here). The C-shaped macronucleus is transversely oriented (not well seen in this image). The single contractile vacuole is in the posterior half of the cell. Propyxidium replaced the preoccupied Pyxidiella. Collected from a freshwater pond near Boise, Idaho. Phase contrast illumination.
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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.
