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Leucocryptos marina (Braarud, 1935) Butcher, 1967. Cells are 5-7 x 10-20 microns Asymmetrical, droplet-shaped cell with two thick, subequal flagella, about as long as the cell and inseted subapically. One or two, ventral and longitudinal rows of 1-5 large extrusomes are visible in the light microscope. There is a central nucleus. When swimming one flagellum coils around the anterior, while the other trails. The flagellate is propelled rapidly forwards, spiraling around its axis.
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Chilomonas (kai-low-moan-ass), one of the two genera of cryptomonad flagellates which do not have chloroplasts. There are two flagella which insert into a groove which opens subapically (the dent near the front of the cell is where is opens). Cytoplasm with large numbers of polysaccharide granules. Differential Interference Contrast.
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This species used to be called Chilomonas paramecium. It is one of a small number of heterotrophic cryptomonads. Two flagella arise fron the anterior depression, at the base of which lies the contractile vacuole and a channel lined with ejectisomes. Body contains polysaccharise storage material and a refractile inorganic crystalline material.
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Goniomonas (go-knee-o-moan-ass) is one of two genera of cryptomonads without chloroplasts. The other is Chilomonas. Goniomonas (also incorrectly called Cyathomonas in some of the literature) is unlike all other cryptomonads because it is primitively aplastidic, and because there is no deep pocket inside the cell. The homologue is located running parallel to the front margin of the cell, and is associated with a line of extrusiible bodies. With two flagella emerging from one anterior corner of the cell. Very flattened. Common but small. Differential interference contrast.
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Kathablepharis (kath-a-bleff-a-riss) remigera (V+rs, 1992) Clay and Kugrens, 1999. Cells are 11 to 18 microns long, not flattened and with two rows of extrusomes located ventrally. The cells are oblong or cylindrical with two flagella inserting subapically. The flagella are thick, longer than the cell, and unequal in length and may coil around the body during swimming. The anterior flagellum is about twice the length of the cell and may coil up during resting, and the posterior flagellum is about three times cell length. The nucleus lies in the middle of the cell. The cells rotate while swimming. Rarely observed.
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Chilomonas (kai-low-moan-ass), one of the two genera of cryptomonad flagellates which do not have chloroplasts. There are two flagella which insert into a groove which opens subapically (the dent near the front of the cell is where is opens). Special extrusomes (ejectisomes) form a little cluster around the flagellar pocket (the pocket can not be seen). Cytoplasm with large numbers of polysaccharide granules. This cell slightly distorted. Differential Interference Contrast.
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Goniomonas (go-knee-o-moan-ass) is one of two genera of cryptomonads without chloroplasts. The other is Chilomonas. Goniomonas (also incorrectly called Cyathomonas in some of the literature) is unlike all other cryptomonads because it is primitively aplastidic, and because there is no deep pocket inside the cell. The homologue is located running parallel to the front margin of the cell, and is associated with a line of extrusiible bodies. With two flagella emerging from one anterior corner of the cell. Flattened. This individual is ingesting a bacterium. Phase contrast.
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Kathablepharis remigera (V+rs, 1992) Clay and Kugrens, 1999. Cells are 11 to 18 microns long, not flattened and with two rows of extrusomes located ventrally. The cells are oblong or cylindrical with two flagella inserting subapically. The flagella are thick, longer than the cell, and unequal in length and may coil around the body during swimming. The anterior flagellum is about twice the length of the cell and may coil up during resting, and the posterior flagellum is about three times cell length. The nucleus lies in the middle of the cell. The cells rotate while swimming.
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Chilomonas (kai-low-moan-ass), one of the two genera of cryptomonad flagellates which do not have chloroplasts. There are two flagella which insert into a groove which opens subapically - the flagella can be seen here as the two dark filaments emerging from the anterior (top) of the cell. Cytoplasm with large numbers of polysaccharide granules. Phase contrast.
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Goniomonas (go-knee-o-moan-ass) is one of two genera of cryptomonads without chloroplasts. The other is Chilomonas. Goniomonas (also incorrectly called Cyathomonas in some of the literature) is unlike all other cryptomonads because it is primitively aplastidic, and because there is no deep pocket inside the cell. The homologue is located running parallel to the front margin of the cell, and is associated with a line of extrusiible bodies. With two flagella emerging from one anterior corner of the cell. Very flattened. Common but small. Phase contrast.
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Campylomonas (cam-pile-owe-moan-ass) one of the cryptomonad flagellates with olive-green plastids. The inclusions are mostly polysaccharide storage. Two flagella visible at top (anterior) and surface is irregular because of the small skeletal plates that lie under the cell membrane. Differential interference microscopy.
data on this strain.
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Goniomonas (go-knee-owe-moan-ass) is a small cryptomonad flagellate. Typically flattened, with two flagella (not visible here) emerging from a pocket located near one of the anterior corners of the cell. The refractile region is a band of extrusomes. Phase contrast. Material from Nymph Creek and Nymph Lake, thermal sites within Yellowstone National Park, photograph by Kathy Sheehan and David Patterson.
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Chilomonas paramecium Ehrenberg, 1831. Colourless cryptomonads, with stiff elongate-ovate body, 19 to 30 microns long. Two subequal flagella, shorter than the length of the body, insert in an anterior pocket which is surrounded by rows of extrusomes. Small extrusomes are also visible under the cell membrane. The nucleus is located posteriorly to the pocket. A contractile vacuole is located anteriorly and empties into the pocket. Cells contain refractile storage products and often two refractile Maupas bodies. Cells rotate while swimming, and can also swim backwards.
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Chilomonas, a colourless (but lecuoplastidic) cryptomonad. The body shape of most cryptomonads is similar, rounded or pointed posteriorly, perhaps with a very slight twist, widest just subapically. There are two flagella which insert into a subapical pocket. The pocket is lined with explosive extrusomes (the type in cryptomonads is called ejectisome), and small extrusomes also lie under the body surface. Body often with abundant polysaccharide materials. This species can form vast numbers - usually in organically enriched low oxygen conditions. Differential interference contrast.
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Goniomonas, often referred to as Cyathomonas, a colourless cryptomonad. Known to occasionally consume bacteria. Two flagella insert in a small pocket to one siode of the flattened anterior end of the cell. There is a line of refractile ejectisomes running parallel to the front edge of the cell. From Lake Donghu, China. Phase contrast micrograph.
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Chilomonas amygdalum Kent, 1880. Colourless cryptomonads, with stiff elongate-ovate body, almond-shaped, somewhat curved towards the ventral aspect, from three to four times as long as broad, flagella subequal, longer than the cell, endoplasm transparent, granular. Length 12.7 microns
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Goniomonas, a small heterotrophic cryptomonad. the shape is not typical of other members of the group. It is flattened , the front end looks as if it has been cut off. Two flagella arise from one corner of the front of the cell. There is a short line of ejectisomes (extrusomes) running parallel to the front edge fo the cell. From a freshwater pond near Boise, Idaho.
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Campylomonas (cam-pile-owe-moan-ass) one of the cryptomonad flagellates with olive-green plastids. The inclusions are mostly polysaccharide storage. Flagellum visible at top (anterior) and surface is irregular because of the small skeletal plates that lie under the cell membrane. Differential interference microscopy.
data on this strain.
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