. Fresh-water biology. Freshwater biology. i67 (166) 168 (17s) AMOEBOID PROTOZOA (SARCODINA) Envelop with more or less closely united spicules. 23s 168 With a thick protoplasmic envelop in which are imbedded skeletal elements in the form of spicules or plates. Order Chalarothoraca . 169. 169 (172) Skeletal elements loosely connected 170 170 (171) Spicules chitinous, radiating between the pseudopodia. Heterophrys Archer. Representative species. . Heterophrys myriopoda Archer 1869. In this species the envelop is mucilaginous, its outer border pre- senting a villous appearance due to the arrangem
. Fresh-water biology. Freshwater biology. i67 (166) 168 (17s) AMOEBOID PROTOZOA (SARCODINA) Envelop with more or less closely united spicules. 23s 168 With a thick protoplasmic envelop in which are imbedded skeletal elements in the form of spicules or plates. Order Chalarothoraca . 169. 169 (172) Skeletal elements loosely connected 170 170 (171) Spicules chitinous, radiating between the pseudopodia. Heterophrys Archer. Representative species. . Heterophrys myriopoda Archer 1869. In this species the envelop is mucilaginous, its outer border pre- senting a villous appearance due to the arrangement of the spicules. Ray-like pseudopodia penetrate the envelop. This organism is known to take possession of spicules from species of related genera, probably from discarded skeletons, and make them a part of its own envelop. Endoplasm usually green with symbiotic algae. Nucleus single. A contractile vacuole is not always observed. Habitat marshes and standing water. Diameter 70^1. Fig. 357. Heteropkrys myriopoda. X igo. {After Penard.) 171 (170) Spicules siliceous, scattered through the envelop and surrounding the bases of the pseudopodia. . Raphidiophrys Archer. Representative species. Raphidiophrys elegans Hertwig and Lesser 1874. The spicules are semicircular, with their convex surfaces toward the body and pseudopodia. Nucleus single. One contractile vacuole. Chlorophyl sometimes present. Often numbers of these individuals are grouped into colonies, joined by protoplasmic processes. Habitat among aquatic plants. Diameter 30 n. R. viridis Archer differs from R. elegans in the fusiform spic- ules and the constant presence of symbiotic algae. Fig. 3s8. Raphidiophrys elegans. X 150. (After Leidy.). 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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
