. The Protozoa. Protozoa. THE SARCODINA 75 spindles, or blade-shaped plates, and may become firmly attached to one another, forming latticed skeletons, like those of Radiolaria {Clathnilina, Fig. 39). Intermediate stages are seen in such forms as Diplocystis, where the plates are very small and arranged without. Fig. 39. — Clathrulina elegans Cienk. [Greeff.] any apparent order in the gelatinous mantle. In Raphidiophrys (Fig. 40) the silicious plates are much larger and more regularly arranged, while in Pinaciophora and Acanthocystis (B, C, D) they be- come so closely knit that they form an ef

. The Protozoa. Protozoa. THE SARCODINA 75 spindles, or blade-shaped plates, and may become firmly attached to one another, forming latticed skeletons, like those of Radiolaria {Clathnilina, Fig. 39). Intermediate stages are seen in such forms as Diplocystis, where the plates are very small and arranged without. Fig. 39. — Clathrulina elegans Cienk. [Greeff.] any apparent order in the gelatinous mantle. In Raphidiophrys (Fig. 40) the silicious plates are much larger and more regularly arranged, while in Pinaciophora and Acanthocystis (B, C, D) they be- come so closely knit that they form an ef Stock Photo
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. The Protozoa. Protozoa. THE SARCODINA 75 spindles, or blade-shaped plates, and may become firmly attached to one another, forming latticed skeletons, like those of Radiolaria {Clathnilina, Fig. 39). Intermediate stages are seen in such forms as Diplocystis, where the plates are very small and arranged without. Fig. 39. — Clathrulina elegans Cienk. [Greeff.] any apparent order in the gelatinous mantle. In Raphidiophrys (Fig. 40) the silicious plates are much larger and more regularly arranged, while in Pinaciophora and Acanthocystis (B, C, D) they be- come so closely knit that they form an efficient shield. In Acantho- cystis, each plate is a small rectangular prism, laid tangential to the surface with sharper spicules arranged at intervals at right angles to. 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 work.. Calkins, Gary N. (Gary Nathan), b. 1869. New York, The Macmillan company; London, Mamcillan & co. , ltd.