File:EB1911 Gastropoda - Patella vulgata section and ctenidium.jpg

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Summary

Description

English: A, Section in a plane vertical to the surface of the neck of Patella vulgata through a, the rudimentary ctenidium (Lankester’s organ), and b, the olfactory epithelium (osphradium); c, the olfactory (osphradial) ganglion. B, Surface view of a rudimentary ctenidium of Patella excised and viewed as a transparent object.

Date

published 1911

Source

“Gastropoda,” Encyclopædia Britannica (11th ed.), v. 11, 1911, p. 508, fig. 8.

Author

Spengel and Lankester.

Permission
(Reusing this file)

This image comes from the 13^th 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/Time	Thumbnail	Dimensions	User	Comment
current	19:51, 27 February 2019		617 × 699 (116 KB)	Bob Burkhardt	{{Information \|description ={{en\|1=A, Section in a plane vertical to the surface of the neck of ''Patella vulgata'' through ''a'', the rudimentary ctenidium (Lankester’s organ), and ''b'', the olfactory epithelium (osphradium); ''c'', the olfactory (osphradial) ganglion. B, Surface view of a rudimentary ctenidium of ''Patella'' excised and viewed as a transparent object.}} \|date =published 1911 \|source =“Gastropoda,” ''Encyclopædia Britannica'' (11th ed.), v. 11, 1911, p. 5...

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