. Fresh-water biology. Freshwater biology. 234 FRESH-WATER BIOLOGY 160 (159) Body amoeboid; endoplasm red or brown. Vampyrella Cienkowsky. Representative'species. Vampyrella lateritia Cienkowsky 1865. Body spherical or elongated. Pseudopodia arising from all parts of the body or from one point. The nucleus and contractile vacuole usually con- cealed by the contents of the endoplasm. A gelatinous sheath sornetfmes surrounds the body. Habitat among algae upon which it feeds. Diameter 25 to 80 li. Fig. 353. Vampyrella lateritia. X 250. (After Conn.) 161 (i) Pseudopodia with axial filaments Class
. Fresh-water biology. Freshwater biology. 234 FRESH-WATER BIOLOGY 160 (159) Body amoeboid; endoplasm red or brown. Vampyrella Cienkowsky. Representative'species. Vampyrella lateritia Cienkowsky 1865. Body spherical or elongated. Pseudopodia arising from all parts of the body or from one point. The nucleus and contractile vacuole usually con- cealed by the contents of the endoplasm. A gelatinous sheath sornetfmes surrounds the body. Habitat among algae upon which it feeds. Diameter 25 to 80 li. Fig. 353. Vampyrella lateritia. X 250. (After Conn.) 161 (i) Pseudopodia with axial filaments Class Actinopoda. Fresh-water species included in one subclass. Subclass Heliozoa . 162 No central capsule between endoplasm and ectoplasm. Pseudopodia ray-like. 162 (165) With no external envelop . . Order Aphrothoracida . 163 163 (164) Nucleus single. Actinophrys Ehrenberg. Representative species Actinophrys sol. Ehrenberg Body spherical with protoplasm highly vacuolated. Usually one contractile vacuole which rises and pushes out the surface as a rounded globule before bursting. Pseudopodia extending from all parts of the body. Habitat pond water among aquatic plants; very common. Diameter 40 to 50 n. Fig. 354. Actinophrys sol. cv, contractile vacuole. X 245. (After Leidy.) 164 (163) Nuclei many Actinosphaerium Stein. Representative species. Actinosphaerium eichhornii Ehrenberg 1840. v\N\>.\'.-',ii. ;. 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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