File:EB1911 Proteomyxa.jpg

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Summary

Description

English: Various Proteomyxa:

1, Vampyrella spirogyrae, Cienk., amoeba phase penetrating a cell of Spirogyra b, by a process of its protoplasm c, and taking up the substance of the Spirogyra cell, some of which is seen within the Vampyrella a.

2, Large individual of Vampyrella, showing pseudopodia e, and food particles a. The nucleus (though present) is not shown in this drawing.

3, Cyst phase of Vampyrella. The contents of the cyst have divided into four equal parts, of which three are visible. One is commencing to break its way through the cyst-wall f; a, food particles.

4, Archerina boltoni, Lankester, showing lobose and filamentous protoplasm, and three groups of chlorophyll corpuscles. The protoplasm g is engulphing a Bacterium i.

5, Cyst phase of Archerina: a, spinous cyst-wall; b, green-coloured contents.

6, Chlorophyll corpuscle of Archerina showing tetraschistic division.

7. Actinophryd form of Archerina: b, chlorophyll corpuscles.

8, Protogenes primordialis, Haeckel (Amoeba porrecta, M. Schultze), from Schultze's figure.

Date

published 1911

Source

“Proteomyxa,” Encyclopædia Britannica (11th ed.), v. 22, 1911, p. 471.

Author

Marcus Hartog; M. Schultze

Permission
(Reusing this file)

This image comes from the 13^th 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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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:58, 2 July 2018		779 × 1,487 (312 KB)	Bob Burkhardt	{{Information \|description ={{en\|1=Various Proteomyxa: 1, ''Vampyrella spirogyrae'', Cienk., amoeba phase penetrating a cell of Spirogyra ''b'', by a process of its protoplasm ''c'', and taking up the substance of the Spirogyra cell, some of which is seen within the ''Vampyrella'' a. 2, Large individual of ''Vampyrella'', showing pseudopodia ''e'', and food particles ''a''. The nucleus (though present) is not shown in this drawing. 3, Cyst phase of ''Vampyrella''. The contents of the cys...

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