. Ameboid movement. Amoeboid movement; Amoeba. AMEBOID MOVEMENT II plasmic tube, in an ameba of several pseudopods, excepting where there is a wide zone of stationary endoplasm between the streams (Figure i, v, w). But in "fountain currents," such as Rhumbler ?] ^i\<\1^i\. Figure i. Illustrating the various directions of endoplasmic streaming in growing and retracting pseudopods. a, two oppositely directed streams in a pseudopod, one directed toward the base and the other toward the tip of the pseudopod, with a neutral zone between, b, two streams flowing toward each other. Cases


. Ameboid movement. Amoeboid movement; Amoeba. AMEBOID MOVEMENT II plasmic tube, in an ameba of several pseudopods, excepting where there is a wide zone of stationary endoplasm between the streams (Figure i, v, w). But in "fountain currents," such as Rhumbler ?] ^i\<\1^i\. Figure i. Illustrating the various directions of endoplasmic streaming in growing and retracting pseudopods. a, two oppositely directed streams in a pseudopod, one directed toward the base and the other toward the tip of the pseudopod, with a neutral zone between, b, two streams flowing toward each other. Cases c to r are self explanatory, s, rotational cur- rents observed occasionally in various species of amebas. t, "fountain currents," sometimes observed in Amoeba blattae, and rarely in other forms, lu and v represent cases of streaming which have not been ob- served and which probably do not occur. w„ similar to v, but with a wide neutral zone between the streams, represents an actual observed case. m and r probably occur only very rarely; no such cases have been seen, but there seems to be no reason why they do not sometimes occur. Ex- cepting in, u, r and v, all these figures were drawn from observed cases of streaming. ('98, p. 190) described and figured for Amoeba blattae BiitschH, and which may readily be observed in most species of amebas if immersed in a solution of gelatin thick enough to keep the amebas. 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 Schaeffer, Asa A. (Asa Arthur), b. 1883. Princeton : Princeton University Press


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