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Matute, La Rioja, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Canada Del Hoyo, Castille la Mancha, Spain
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Gravalos, La Rioja, Spain
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Caada del Hoyo, Castilla-La Mancha, Espaa
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Logrono, La Rioja, Spain
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Grove, O, Galicia, Spain
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Vitoria, Euskadi, Espaa
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Matalebreras, Castille and Leon, Spain
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Logrono, La Rioja, Spain
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Portrait of the loricate pleuronematid ciliate, Calyptotricha pleuronemoides (Phillips, 1882). The transparent lorica of this species is open at both ends and dilated in the center where the cell resides. The cell is bluntly pointed anteriorly and broadly rounded posteriorly. The peristome is about 3/4 cell length. There is a prominent undulating membrane on the right margin of the peristome curving around its posterior end to form a shallow pouch (seen well here). There are three inconspicuous adoral membranelles. The longitudinal somatic kineties are uniformly distributed. There is a preoral and postoral suture. There is a single long caudal cilium. There is a single posterior contractile vacuole. The spherical macronucleus is centrally located. C. lanuginosa is similar in appearance of the cell except that it has two long anterior apical cilia and a cylindrical lorica with parallel sides. Collected from a freshwater dredge pond near Idaho City, Idaho June 2003. DIC.
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Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.
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Right lateral infraciliature of the hymenostome ciliate Colpidium kleini (Foissner, 1969). C. kleini is very similar in overall appearance to C. colpoda although usually more slender and with fewer somatic kineties. The cytostome is in the anterior 1/4 of the cell. There is a curved paraoral membrane along the convex right margin of the cytostome. The left margin is slightly concave. There are three adoral membranelles. There are 32 to 44 somatic kineties. The kineties to the right and left of the oral aperture meet at a curved preoral suture. The right somatic kineties bend leftward at the level of the cytostome. There is an anterior apical area bare of cilia. There are rows of inconspicuous mucocysts between the somatic kineties. The ellipsoid macronucleus and adjacent micronucleus are centrally located. The single contractile vacuole is located in the midbody with a single excretory pore on the right surface. The feature most clearly distinguishing Colpidium kleini from C. coploda is the silverline system (as demonstrated by silver nitrate staining).Stained by the silver carbonate technic (see Foissner, W.Europ. J. Protistol.27,313-330;1991). Collected from an organically enriched freshwater pond near Boise, Idaho.Brightfield.
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Thuricola (thurr-ick-owe-la) is a peritrich ciliate which lives within a lorica. Contractile and this cell has withdrawn into the lorica. A flap has closed over the contractile cell and this features distinguishes this genus. Differential interference contrast.
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Cothurnia nodosa.
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Left image: Live specimen imaged using DIC optics; Right image: protargol-stained specimen. Images by G. A. Antipa
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Hoyo de Manzanares, Madrid, Spain
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Logrono, La Rioja, Spain
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Images from the species description by Antipa & Dolan (1985)
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Herrera de Soria, Castille and Leon, Spain
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Mahide, Castilla y Len, Espaa
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Rome, Lazio, Italy