File:EB1911 Sponges - Astrosclera willeyana.jpg

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Original file(954 × 428 pixels, file size: 136 KB, MIME type: image/jpeg)

Summary

Description
English: Astrosclera willeyana (Lister):

A, Entire sponge (× 3): p.s., upper surface with openings of canal-system; b, base of attachment.

B, Section of skeleton: sph, spherules of arragonite; c, canals.
Date published 1911
Source “Sponges,” Encyclopædia Britannica (11th ed.), v. 25, 1911, p. 722, fig. 25.
Author After J. J. Lister.
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
current16:34, 2 October 2018Thumbnail for version as of 16:34, 2 October 2018954 × 428 (136 KB)Bob Burkhardt{{Information |description ={{en|1=''Astrosclera willeyana'' (Lister): A, Entire sponge (× 3): ''p.s.'', upper surface with openings of canal-system; ''b'', base of attachment. B, Section of skeleton: ''sph'', spherules of arragonite; ''c'', canals. }} |date =published 1911 |source =“Sponges,” ''Encyclopædia Britannica'' (11th ed.), v. 25, 1911, p. 722, fig. 25. |author =After J. J. Lister. |permission ={{PD-Britannica}} }} Category:Porifera anatomy

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