File:EB1911-Gastropoda 2.png

From Wikisource
Jump to navigation Jump to search

EB1911-Gastropoda_2.png (437 × 447 pixels, file size: 574 KB, MIME type: image/png)

Summary

Description
English: Four stages in the development of a Gastropod showing the process of body torsion. (After Robert.)

A, Embryo without flexure.

B, Embryo with ventral flexure of the intestine.

C, Embryo with ventral flexure and exogastric shell.

D, Embryo with lateral torsion and an endogastric shell.

a, Anus.

f, Foot.

m, Mouth.

pa, Mantle.

pac, Pallial cavity.

ve, Velum.


From Lankester’s Treatise on Zoology.
Date
Source Encyclopædia Britannica Eleventh Edition, Vol. 11, Page 506
Author Encyclopædia Britannica
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.

Licensing

Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

media type

image/png

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current18:37, 10 March 2015Thumbnail for version as of 18:37, 10 March 2015437 × 447 (574 KB)AnimalpartyUser created page with UploadWizard

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikisource.org/wiki/File:EB1911-Gastropoda_2.png"