. Fresh-water biology. Freshwater biology. Body subspherical, soft, and plastic. Short, lobate pseudopodia often in addition to capitate rays. Flagella subequal arising at some distance from each other. Nucleus central; contractile vacu- oles two. Diameter about 12 )i. Stagnant pond water. Fig. 364. Acinetactis mirabilis. X 700. (After Stokes.) 11(10) Pseudopodia lobe-Uke. Flagella two, one trailing. Cercobodo Kislhs. Representative species Cercobodo Species not determined. Fig. 365. Cercobodo sp. X 1250. (After Conn.) 12 (s) Plastic but not forming pseudopodia. Flagellum single. Family C
. Fresh-water biology. Freshwater biology. Body subspherical, soft, and plastic. Short, lobate pseudopodia often in addition to capitate rays. Flagella subequal arising at some distance from each other. Nucleus central; contractile vacu- oles two. Diameter about 12 )i. Stagnant pond water. Fig. 364. Acinetactis mirabilis. X 700. (After Stokes.) 11(10) Pseudopodia lobe-Uke. Flagella two, one trailing. Cercobodo Kislhs. Representative species Cercobodo Species not determined. Fig. 365. Cercobodo sp. X 1250. (After Conn.) 12 (s) Plastic but not forming pseudopodia. Flagellum single. Family Cercomonadidae 13 13 (14) With a posterior tail-like filament. . Cercomonas Dujardin. Representative species. Cercomonas longicaudata Dujardin 1841. Body elongate-ovate, fusiform, terminating posteriorly in a long, tail-like filament about twice the length of the body. Nucleus spher- ical, subcentral. Length 10 ii. Vegetable infusions. Fig. 366. Cercomonas longicaudata. ct, contractile vacuole; n, nucleus. X 1200. (After Stein.) 14 (13) Without a tail-like filament Oikomonas Kent. Representative species Oikomonas steinii Kent 1880. Body, in motile condition, exceedingly plastic with a single flagellum at the anterior end and a lip-Uke extension which as- sists in taking food; in sedentary state, pyriform and attached by posterior extremity. Nucleus posteriorly located. Length, when contracted, about 20 to 30 jx. Vegetable mfusions. Social. Fig. 367. Oikomonas steinii. cv, contractile vacuole; », nucleus. X 440. (After Blochmann.). 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
