. The biology of the protozoa. Protozoa; Protozoa. 32 BIOLOGY OF THE PROTOZOA rhizopods are relatively dense like that of the naked Amoeba verru- cosa and are more or less globular or pyriform in shape. On such a protoplasmic basis the shells of Dlfflugia species, Euglypha, Cyylw- : \ , Ik ' 1 i •; n. D Fig. 10. — Allogromia oviforme, foraminiferon with chitinous monothalamous shell and reticulose pseudo podia. (£>) a recently captured diatom; OS) chitinous shell. (From Calkins after M. Schultze.) deria, Centropyxis, Arcella, etc., are deposited and these, once formed, are never changed (Fi
. The biology of the protozoa. Protozoa; Protozoa. 32 BIOLOGY OF THE PROTOZOA rhizopods are relatively dense like that of the naked Amoeba verru- cosa and are more or less globular or pyriform in shape. On such a protoplasmic basis the shells of Dlfflugia species, Euglypha, Cyylw- : \ , Ik ' 1 i •; n. D Fig. 10. — Allogromia oviforme, foraminiferon with chitinous monothalamous shell and reticulose pseudo podia. (£>) a recently captured diatom; OS) chitinous shell. (From Calkins after M. Schultze.) deria, Centropyxis, Arcella, etc., are deposited and these, once formed, are never changed (Fig. 11). Only rarely are these shelled rhizopods flattened or discoid as in Hyalodiscus (see Chapter XII). The typical form in many shell-bearing or skeleton-forming rhizo-. 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 Calkins, Gary N. (Gary Nathan), b. 1869. Philadelphia, Lea & Febiger
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