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[taxonomy:genus=Polychaos]
Protoplasmic streaming and deformation of a large amoeba. New outgrowths of cytoplasm begin as small spherical blebs that rapidly enlarge and sprout off blebs of their own. Overall the shape is straight and more or less cylindrical, save for the blebbing. Instead of forking, new branches are formed by streaming some cytoplasm back to the rear of the amoeba and blebbing a new growth outwards from there, resulting in a radial shape.
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Castille and Leon, Spain
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Villar del Pedroso, Extremadura, Spain
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Villar del Pedroso, Extremadura, Spain
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Castille and Leon, Spain
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Canencia, Madrid, Spain
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Galende, Castilla y Len, Espaa
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Canencia, Madrid, Spain
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Canencia, Madrid, Spain
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Hoyo de Manzanares, Madrid, Spain
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Canencia, Madrid, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Rancho de la Herradura, Andalusia, Spain
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The identity of this amoeba is uncertain. It is a amoeba that forms lobose pseudopodia and has a large nucleus. This cell is squashed and has taken on this star-like form. Phase contrast microscopy.
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Detail of Polychaos dubium, a large polypodial naked amoeba. P. dubium is the type species. Palmate form. Pseudopodia lack the longitudinal ridges seen in Amoeba species. The posterior is composed of a collection of fused remnant pseudopodia. May become monopodial during rapid locomotion. The granular nucleus is spherical to ovoid in shape. The cytoplasm contains ingested algae and numerous refractile crystals. This image shows a large bipyramidal cytoplasmic crystal, probably composed of urea. From freshwater pond near Boise, Idaho. DIC optics.
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Portrait of Polychaos dubium, a large polypodial naked amoeba. P. dubium is the type species. Palmate form. Pseudopodia lack the longitudinal ridges seen in species of Amoeba. The posterior (left side of image) is composed of a collection of fused remnant pseudopodia. May become monopodial during rapid locomotion. The granular nucleus is spherical to ovoid in shape. A large contractile vacuole is visible. The cytoplasm contains ingested algae and numerous refractile crystals. From freshwater pond near Boise, Idaho. DIC optics.
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Portrait of the polypoidal amoeba. The single nucleus with itâs distinct nucleolar material in narrow peripheral lobes well visible in the central part of the cell.
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The nucleus of Polychaos fasciculatum with it's nucleolar material in typically peripheral located narrow lobes
