File:EB1911 Sponges - Histology (2).jpg

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Summary

Description
English: Histology:

 a, Collencytes from Thenea muricata.

 b, Chondrenchyme (with spicules) from Corticium candelabrum.

 c, Cystenchyme, from Pachymatisma johnstoni.

 d, Desmacyte, from Dragmastra normani.

 e, Myocytes and collencytes, from Cinachyra barbata.

 f, Thesocyte, from Thenea muricata.

 g, Collared cell (choanocyte), from Sycon raphanus.

h–n, Silicoblasts or mother-cells, in which different forms of siliceous

spicules are being secreted.
Date published 1911
Source “Sponges,” Encyclopædia Britannica (11th ed.), v. 25, 1911, p. 726, fig. 35.
Author After Schulze and Sollas.
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.

File history

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Date/TimeThumbnailDimensionsUserComment
current15:54, 10 October 2018Thumbnail for version as of 15:54, 10 October 2018767 × 1,363 (252 KB)Bob Burkhardt{{Information |description ={{en|1=Histology:  ''a'', Collencytes from ''Thenea muricata''.  ''b'', Chondrenchyme (with spicules) from ''Corticium candelabrum''.  ''c'', Cystenchyme, from ''Pachymatisma johnstoni''.  ''d'', Desmacyte, from ''Dragmastra normani''.  ''e'', Myocytes and collencytes, from ''Cinachyra barbata''.  ''f'', Thesocyte, from ''Thenea muricata''.  ''g'', Collared cell (choanocyte), from ''Sycon raphanus''. ''h''–''n'',...
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