File:Valvata virens operculum.jpg
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Valvata_virens_operculum.jpg (213 × 224 pixels, file size: 22 KB, MIME type: image/jpeg)
| Description |
English: drawing of the operculum of Valvata virens |
| Date | |
| Source | Dall W. H. 1905 Alaska, Volume XIII, Land and Fresh Water Mollusks. New York, Daubleday, Page & Complany, pages 1-157, page 124. |
| Author | W. H. Dall (1845-1927) |
| Permission (Reusing this file) |
public domain |
|
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 80 years or fewer.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:56, 18 December 2008 | | 213 × 224 (22 KB) | wikimediacommons>Snek01 | {{Information |Description={{en|drawing of the operculum of ''Valvata virens''}} |Source=Dall W. H. 1905 [http://www.archive.org/details/alaskaexp13harruoft Alaska, Volume XIII, Land and Fresh Water Mollusks]. New York, Daubleday, Page & Complany, pag |
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