File:EB1911 Sipunculoidea - Physcosoma.jpg

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Summary

Description
English: A semi-diagrammatic figure of the anterior end of half a Physcosoma, seen from the inner side. The introvert is fully everted and the lophophore expanded. The collar which surrounds the head is not fully extended. Two rows only of hooks are shown. See legend below.
Date published 1911
Source “Sipunculoidea,” Encyclopædia Britannica (11th ed.), v. 25, 1911, p. 153, Fig. 3.
Author Arthur Everett Shipley
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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current20:58, 7 February 2020Thumbnail for version as of 20:58, 7 February 2020962 × 1,009 (353 KB)Library Guy{{Information |description ={{en|1=A semi-diagrammatic figure of the anterior end of half a ''Physcosoma'', seen from the inner side. The introvert is fully everted and the lophophore expanded. The collar which surrounds the head is not fully extended. Two rows only of hooks are shown. See legend below.}} |date =published 1911 |source =“Sipunculoidea,” ''Encyclopædia Britannica'' (11th ed.), v. 25, 1911, p. 153, Fig. 3. |author =Arthur Everett Shipley |permission...

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