File:EB1911 Lamellibranchia - Mactra - siphons retracted.jpg

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EB1911_Lamellibranchia_-_Mactra_-_siphons_retracted.jpg(376 × 281 pixels, file size: 46 KB, MIME type: image/jpeg)

Summary

Description
English: Lateral view of a Mactra, the right valve of the shell and right mantle-flap removed, and the siphons retracted. See legend below.
Date published 1911
Source “Lamellibranchia,” Encyclopædia Britannica (11th ed.), v. 16, 1911, p. 123, fig. 28.
Author From Gegenbaur.
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:
br, br′, Outer and inner gill-plates.
t, Labial tentacle.
ta, tr, Upper and lower siphons.
ms, Siphonal muscle of the mantle-flap.
ma, Anterior adductor muscle.
mp, Posterior adductor muscle.
p, Foot.
c, Umbo.

File history

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Date/TimeThumbnailDimensionsUserComment
current18:13, 23 April 2019Thumbnail for version as of 18:13, 23 April 2019376 × 281 (46 KB)Bob Burkhardt{{Information |description ={{en|1=Lateral view of a ''Mactra'', the right valve of the shell and right mantle-flap removed, and the siphons retracted. See legend below.}} |date =published 1911 |source =“Lamellibranchia,” ''Encyclopædia Britannica'' (11th ed.), v. 16, 1911, p. 123, fig. 28. |author =From Gegenbaur. |permission ={{PD-Britannica}} }} {{en|Legend:}} {| |-valign="top" |{{nowrap|''br'', ''br''′,}}||Outer and inner gill-plates. |-valign="top" |''t'',||L...