File:EB1911 Phoronidea - Metamorphosis of Actinotrocha.jpg

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Summary

Description
English: Diagrams illustrating the metamorphosis of Actinotrocha. See legend below.
Date published 1911
Source “Phoronidea,” Encyclopædia Britannica (11th ed.), v. 21, 1911, p. 473, fig. 4.
Author Sidney Frederic Harmer
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.
English: Legend:
AB, Anteroposterior axis.
DV, Dorsoventral axis.
1,2,  Actinotrocha.
3, Commencement of the metamorphosis.
4, Later stage in the metamorphosis: a, anus; iv, ventral invagination; o, mouth.

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current21:05, 12 February 2020Thumbnail for version as of 21:05, 12 February 2020871 × 545 (102 KB)Bob Burkhardt{{Information |description ={{en|1=Diagrams illustrating the metamorphosis of ''Actinotrocha''. See legend below.}} |date =published 1911 |source =“Phoronidea,” ''Encyclopædia Britannica'' (11th ed.), v. 21, 1911, p. 473, fig. 4. |author =Sidney Frederic Harmer |permission ={{PD-Britannica}} }} {{en|Legend:}} {|cellpadding="0" cellpadding="0" |-valign="top" |AB,||Anteroposterior axis. |-valign="top" |DV,||Dorsoventral axis. |-valign="top" |1,2, ||Actinotrocha...