File:EB1911 Sponges - Development of Sycon raphanus.jpg

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Summary

Description
English: Development of Sycon raphanus:

a, Ovum.

b, c, Embryo with 8 blastomeres (b, top view, c, side view).

d, Blastosphere (blastula).

e, Larva at time of escape from parent.

f, Invagination of flagellated cells.

g, Gastrula attached by oral face.

h, Young sponge (Olynthus stage).

j, Top view of young sponge.
Date published 1911
Source “Sponges,” Encyclopædia Britannica (11th ed.), v. 25, 1911, p. 727, fig. 38.
Author After F. E. Schulze.
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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Date/TimeThumbnailDimensionsUserComment
current17:16, 11 October 2018Thumbnail for version as of 17:16, 11 October 2018925 × 1,092 (538 KB)Bob Burkhardt{{Information |description ={{en|1=Development of ''Sycon raphanus'': ''a'', Ovum. ''b'', ''c'', Embryo with 8 blastomeres (''b'', top view, ''c'', side view). ''d'', Blastosphere '(blastula). ''e'', Larva at time of escape from parent. ''f'', Invagination of flagellated cells. ''g'', Gastrula attached by oral face. ''h'', Young sponge (Olynthus stage). ''j'', Top view of young sponge.}} |date =published 1911 |source =“Sponges,” ''Encyclopædia Britannica''...

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