File:EB1911-Gastropoda 3.png
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Summary
| Description |
English: Sketch of a model designed so as to show the effect of torsion or rotation of the visceral hump in Streptoneurous Gastropoda.
A, Unrotated ancestral condition. B, Quarter-rotation. C, Complete semi-rotation (the limit). an, Anus. ln, rn, Primarily left nephridium and primarily right nephridium. lvg, Primarily left (subsequently the sub-intestinal) visceral ganglion. rvg, Primarily right (subsequently the sub-intestinal) visceral ganglion.
plg, Pleural ganglion. pedg, Pedal ganglion. abg, Abdominal ganglion. bucc, Buccal mass. W, Wooden arc representing the base-line of the wall of the visceral hump. x, x′, Pins fastening the elastic cord (representing the visceral nerve loop) to W. |
| Date | |
| Source |
 Encyclopædia Britannica Eleventh Edition, Vol. 11, Page 506 |
| Author | Encyclopædia Britannica |
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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. |  |
Licensing
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:37, 10 March 2015 | | 989 × 489 (1.39 MB) | Animalparty | User created page with UploadWizard |
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