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Ventral infraciliature of the colpodid ciliate, Platyophrya vorax (Kahl,1926). The flask-shaped cells are very flexible. The relatively small ovoid anterior cytostome is subapical. There is a right paraoral membrane composed of dikinetids and four rectangular left adoral membranelles (seen here). There is a postoral "pseudomembrane" consisting of closely spaced anterior dikinetids of somatic kineties (not well preserved in this specimen). The right side is more densely ciliated than the left. The dark vertical band in the center of the cytostome probably represents densely staining pharyngeal fibers seen end-on.The slightly spiralled somatic kineties lie in shallow cortical furrows. The central spherical macronucleus has a small central nucleolus and an adjacent micronucleus. The single contractile vacuole is subterminal posteriorly. P. vorax lacks endosymbiotic algae (present in P. sphagni which also has more numerous adoral membranelles and somatic kineties).Collected from temporary puddles with heavy growth of diatoms in a meadow near Boise, Idaho. 43°41'45.09"N 116°13'55.29"W elev.3191 ft. March 2006. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.
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Ventral infraciliature of the colpodid ciliate, Platyophrya vorax (Kahl,1926). The flask-shaped cells are very flexible. The relatively small ovoid anterior cytostome is subapical. There is a right paraoral membrane composed of dikinetids and four rectangular left adoral membranelles (seen here). There is a postoral "pseudomembrane" consisting of closely spaced anterior dikinetids of somatic kineties (not well preserved in this specimen). The dark vertical band in the center of the cytostome probably represents densely staining pharyngeal fibers seen end-on.The right side is more densely ciliated than the left. The slightly spiralled somatic kineties lie in shallow cortical furrows. The central spherical macronucleus has a small central nucleolus and an adjacent micronucleus. The single contractile vacuole is subterminal posteriorly. Ingested diatoms are visible here.P. vorax lacks endosymbiotic algae (present in P. sphagni which also has more numerous adoral membranelles and somatic kineties).Collected from temporary puddles with heavy growth of diatoms in a meadow near Boise, Idaho. 43°41'45.09"N 116°13'55.29"W elev.3191 ft. March 2006. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.
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Right side infraciliature of the colpodid ciliate, Platyophrya vorax (Kahl,1926). The flask-shaped cells are very flexible. The relatively small ovoid anterior cytostome is subapical. There is a right paraoral membrane (seen here) composed of dikinetids and four rectangular left adoral membranelles . There is a postoral "pseudomembrane" consisting of closely spaced anterior dikinetids of somatic kineties. The right side is more densely ciliated than the left. The slightly spiralled somatic kineties lie in shallow cortical furrows. The central spherical macronucleus has a small central nucleolus and an adjacent micronucleus. The single contractile vacuole is subterminal posteriorly. P. vorax lacks endosymbiotic algae (present in P. sphagni which also has more numerous adoral membranelles and somatic kineties).Collected from temporary puddles with heavy growth of diatoms in a meadow near Boise, Idaho. 43°41'45.09"N 116°13'55.29"W elev.3191 ft. March 2006. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.
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Right side infraciliature of the colpodid ciliate, Platyophrya vorax (Kahl,1926). The flask-shaped cells are very flexible. The relatively small ovoid anterior cytostome is subapical. There is a right paraoral membrane (seen here) composed of dikinetids and four rectangular left adoral membranelles . There is a postoral "pseudomembrane" consisting of closely spaced anterior dikinetids of somatic kineties. The right side is more densely ciliated than the left. The slightly spiralled somatic kineties lie in shallow cortical furrows. The central spherical macronucleus has a small central nucleolus and an adjacent micronucleus. The single contractile vacuole is subterminal posteriorly. P. vorax lacks endosymbiotic algae (present in P. sphagni which also has more numerous adoral membranelles and somatic kineties).Collected from temporary puddles with heavy growth of diatoms in a meadow near Boise, Idaho. 43 41'45.09"N 116 13'55.29"W elev.3191 ft. March 2006. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.
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In vivo portrait of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993 (ventral view). This population was feeding on diatoms. Collected from standing organically enriched roadside ditchwater near Boise, Idaho march 2005. DIC.
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Detail of the oral aperture of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993 (yellow arrow indicates posterior end of oral aperture).This population has been feeding on filamentous cyanobacteria (Oscillatoria sp.)Collected from an ephemeral puddle near Boise, Idaho March 2005. DIC.
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Detail view of the macronucleus (MA) and small elliptical micronucleus (Mi) within the macronuclear envelope (NE) in the large colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993.The specimen is moderately compressed by coverglas pressure. Collected from an ephemeral puddle on an intermittently flood-irrigated grass lawn in Boise, Idaho. July 2007 DIC.
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Ventrolateral view of the infraciliature of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993. The shape of this specimen has been distorted by fixation and coverglass pressure. The relatively large obliquely oriented elliptical oral aperture (distorted in this specimen) is located at the junction of the rostrum with the main body. aperture. Collected from standing organically enriched roadside ditchwater near Boise, Idaho, March 2005.Stained by the silver carbonate technic (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.
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Oral infraciliature of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993. Collected from standing organically enriched roadside ditchwater near Boise, Idaho, March 2005. Stained by the silver carbonate technic (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.
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Oral infraciliature of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993. Collected from standing organically enriched roadside ditchwater near Boise, Idaho, March 2005. Stained by the silver carbonate technic (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.
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In vivo portrait of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993 (ventral view). This population was feeding on diatoms and filamentous cyanobacteria (Oscillatoria sp.). From non-flooded Petri dish preparation of topsoil and grass clippings from an intermittently flooded lawn in a public park in Boise, Idaho October 2006. Brightfield.
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Somatic ciliature of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993. There are about 80 slightly spiraled somatic kineties consisting of ciliated dikinetids (seen well in this image. Collected from standing organically enriched roadside ditchwater near Boise, Idaho, March 2005. Stained by the silver carbonate technic (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.
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Detail of the oral aperture of the colpodid ciliate, Rostrophrya camerounensis (Njine, 1979) Foissner, 1993. Collected from standing organically enriched roadside ditchwater near Boise, Idaho, March 2005. DIC.
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Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993. Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Ventral view of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993 squashed and distorted by pressure from the coverglass. The arrowhead indicates the oral apparatus. The arrow points to a segment of ingested filamentous cyanobacterium. Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.DIC.
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Detail view of the oral basket of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993 squashed and distorted by pressure from the coverglass. The arrow points to the mematodesmata of the funnel-shaped cytopharynx.. Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.DIC.
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Ventral infraciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993 squashed and distorted by pressure from the coverglass and by fixation. The yellow arrow indicates the posterior end of the oral apparatus. The green arrow points to the left termination of the paraoral membrane.The adoral membranelles are arrayed in an oblique line from this termination to the left anterior apex of the cell (yellow bracket).Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Ventral infraciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Ventral infraciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Oral infraciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993 The adoral membranelles are arrayed in an oblique line from the termination of the left part of the paraoral membrane to the left anterior apex of the cell.Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Oral infraciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993. The adoral membranelles are arrayed in an oblique line from the termination of the left part of the paraoral membrane to the left anterior apex of the cell. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Nuclear apparatus of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993. The more densely stained micronucleus (arrowhead) is attached to the macronucleus and may lie within its nuclear membrane. A similar arrangement is seen in the genus Rostrophrya.Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Dorsal somatic ciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993. The cilia are paired in the right anterior portion of the cell (green asterisk) but only the posterior basal body of the dikinetids in other parts of the body are ciliated (red asterisk).Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.Brightfield.
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Oral infraciliature of Kuklikophrya ougandae (DRAGESCO, 1972) FOISSNER, 1993.The paraoral membrane is continuous except for a short open area at the left (between red arrowheads) anterior portion at which point the proximal adoral membranelles arise. The adoral membranelles are arrayed in an oblique line from the termination of the left part of the paraoral membrane to the left anterior apex of the cell (green arrowheads). Several postoral somatic kineties bend sharply around the posterior end of the paraoral membrane to parallel the right side of the oral opening (yellow arrowhead). A segment of ingested cyanobacteria is indicated by the yellow arrow.Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from an organically enriched temporary freshwater pool near Boise, Idaho. May 2006.DIC.