File:EB1911 Flagellata (2).jpg

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English: Flagellata:

1. Salpingoeca fusiformis, S. Kent (Choanoflagellata). The protoplasmic body is drawn together within the goblet-shaped shell, and divided into numerous spores.

2. Escape of the spores of the same as monoflagellate and swarm-spores.

3. Codosiga umbellata, Tatem (Choanoflagellata); adult colony formed by dichotomous growth.

4. A single zooid of the same. 

   a = nucleus.
   b = contractile vacuole.
   c = the characteristic “collar” of naked streaming protoplasm.

5. Hexamita inflata, Duj.(Distomatidae); normal adult.

6, 7 Salpingoeca urceolata, S Kent (Choanoflagellata)—6, with collar extended; 7, with collar retracted within the stalked cup.

8 Polytoma uvella, Mull. sp. (Chlamydomonadidae).

9. Lophomonas blattarum, Stein (Trichonymphidae) from the intestine of Blatta orientalis.

10. Bodolens, Mull. (Bodonidae), the wavy filament is a tractellum, the straight one is a trailing thread.

11. Tetramitus sulcatus, Stein (Tetramitidae)

12. Anthophysa vegetans, O.F. Müller (Monadidae). A typical, erect, shortly-branching colony stock with four terminal monad-clusters.

13. Monad cluster of the same in optical section, showing the relation of the individual monads or flagellate zooids to the stem d.

14. Tetramitus rostratus, Perty (Tetramitidae). 

   a = nucleus.
   b = contractile vacuole.

15. Proterospongia Haeckeli, Saville Kent (Choanoflagellata); A social colony of about forty flagellate zooids. 

   a = nucleus.
   b = contractile vacuole.
   c = amoebiform cell sunk within the colonial gelatinous test compared by S. Kent to a mesoderm cell of the sponges.
   d = similar cell reproducing by transverse fission.
   e = normal cells, with their collars contracted.
   f = substance of test.
g = individual reproducing by multiple fission, producing microzoospores, comparable to the spermatozoa of sponges.
Date published 1911
Source “Flagellata,” Encyclopædia Britannica (11th ed.), v. 10, 1911, p. 466, fig. 2.
Author Unknown artistUnknown artist
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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current16:05, 8 August 2018Thumbnail for version as of 16:05, 8 August 2018776 × 1,701 (563 KB)Bob Burkhardt (talk | contribs){{Information |description ={{en|1=Flagellata: 1. Salpingoeca fusiformis, S. Kent (Choanoflagellata). The protoplasmic body is drawn together within the goblet-shaped shell, and divided into numerous spores. 2. Escape of the spores of the same as monoflagellate and swarm-spores. 3. Codosiga umbellata, Tatem (Choanoflagellata); adult colony formed by dichotomous growth. 4. A single zooid of the same. a = nucleus. b = contractile vacuole. c = the characteristic “collar” of na...

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