. Fresh-water biology. Freshwater biology. 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 Zooids pyriform, compressed, obUquely truncate anteriorly. Pedicel very slende
. Fresh-water biology. Freshwater biology. 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 Zooids pyriform, compressed, obUquely truncate anteriorly. Pedicel very slender, threadlike. A colony may include as many as twenty or more zooids. Length of zooids 8 m. Pond water. Ramosonema laxum, cw,contractile vacuole: «, nucleus. ColonyX 350; single zooid X 1000. (After Kent.) 33 (30) Many zooids upon each branch 34 34 (35) Stalk short, branching dichotomously once or twice. Cephalothamnium Stein. Representative species. , . Cephalothamnium caespitosum Kent 1880. Zooids irregularly pyriform, in clusters of two or three or as many as six or eight on the summit of a simple or slightly branched pedicel. Pedicel very short. Length of zooid about 6 /j. Fresh water, attached to Cyclops. Fio. 377. Cephalothamnium caespitosum. X 875. (After Conn.). 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
