File:EB1911 Rhizopida - amoeba anatomy.jpg

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Summary

Description
English: Various aspects of amoeba anatomy. Legend: 1-3, Amoeba radiosa (Dactylosphaerium polypodium), M. Schultze, in three stages of equal binary fission during fifteen minutes; a, nucleus; b, contractile vacuole (after M. Schultze). 4, Amoeba princeps, Ehr.; a, nucleus; b, c, vacuoles; food vacuoles shaded (after Auerbach). 5, 6, Pelomyxa palustris: 5, a small example 1/20 in. in diameter, moderately extended; 6, a portion more highly magnified; a, ectosarc; b, vacuoles; c, d, pseudo pods formed by eruption and containing endosarc; e, vesicles containing a solution of glycogen; f, nuclei; the numerous little pods are symbiotic bacteria. 7, Arcella vulgaris: a, shell; b, cytoplasm; c, lobose pseudopods; d, d, d, 3 nuclei; e, one of the contractile vacuoles; the dark shaded circles represent bubbles or gas vacuoles. 8, Cochliopodium pellucidum: a, “vesicular” nucleus, with dense central mass or “karyosome” (a frequent type of Protistic nucleus).
Date published 1911
Source “Rhizopida,” Encyclopædia Britannica (11th ed.), v. 23, 1911, p. 246, fig. 1.
Author From Lankester.
Permission
(Reusing this file)
Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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current16:40, 6 July 2018Thumbnail for version as of 16:40, 6 July 2018780 × 1,684 (474 KB)Library Guy{{Information |description ={{en|1=Various aspects of amoeba anatomy. Legend: 1-3, ''Amoeba radiosa'' (''Dactylosphaerium polypodium''), M. Schultze, in three stages of equal binary fission during fifteen minutes; ''a'', nucleus; ''b'', contractile vacuole (after M. Schultze). 4, ''Amoeba princeps'', Ehr.; ''a'', nucleus; ''b'', ''c'', vacuoles; food vacuoles shaded (after Auerbach). 5, 6, ''Pelomyxa palustris'': 5, a small example {{sm|{{sfrac|1|20}}}} in. in diameter, moderately extende...
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