. Fresh-water biology. Freshwater biology. FLAGELLATE PROTOZOA (MASTIGOPHORA) 247 28 (27) Free, like Monas, but with the anterior end oblique. Physomonas Kent. Representative species Physomonas elongala Stokes 1886. Body elongate-ovate, changeable in shape; free-swimming or temporarily attached by a very short pedicel. Flagella two, unequal. Contractile vacuole anterior in position. Length about 12 m- Swamp water. Fig. 374. Physomonas elongata. cv, contractile vacuole; fl, nucleus. X 1000. (After Stokes.) 29 (22) Forming colonies. Two flagella. 30 3° (33) One zooid upon the end of each branch
. Fresh-water biology. Freshwater biology. FLAGELLATE PROTOZOA (MASTIGOPHORA) 247 28 (27) Free, like Monas, but with the anterior end oblique. Physomonas Kent. Representative species Physomonas elongala Stokes 1886. Body elongate-ovate, changeable in shape; free-swimming or temporarily attached by a very short pedicel. Flagella two, unequal. Contractile vacuole anterior in position. Length about 12 m- Swamp water. Fig. 374. Physomonas elongata. cv, contractile vacuole; fl, nucleus. X 1000. (After Stokes.) 29 (22) Forming colonies. Two flagella. 30 3° (33) One zooid upon the end of each branch 31 31 (32) Pedicel rigid. Representative species. Dendromonas Stein. . Dendromonas virgaria Weisse Body of zooid pyriform, compressed, with an anterior, lip-hke projection from the base of which arise the two unequal flagella. Nucleus single; contractile vacuole one or two. Colony branching dichotomously. A colony may include over one hundred zooids. Length of zooid 8 to lOju. Pond water. , Fig. 37S. Dendromonas virgaria. Colony X i6o; single zooid X 935 (After Blochmann.) 32 (31) Pedicel flexible. . Representative species. . Ramosonema Kent. Ramosonema laxum Kent Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
