Faune de Maine et Loire, ou, Description méthodique des animaux qu'on rencontre dans toute l'étendue du département de Maine et Loire ...
Paris :Rosier ; Angers : L. Pavie,1828.
biodiversitylibrary.org/page/16097739
Description: English: A Vipera kaznakovi, in Viperidae. Date: 17 March 2009. Source: Own work. Author: Mitternacht90. Permission(Reusing this file): PD. Taken at the OKC Zoo. Licensing[edit] Public domainPublic domainfalsefalse. : I, the copyright holder of this work, release this work into the public domain. This applies worldwide.In some countries this may not be legally possible; if so:I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Description: English: Crossed Viper (Vipera berus) in a forest glade in Varepudas in Haukipudas, Finland. Suomi: Kyy (Vipera berus) metsäaukiolla Vareputaalla, Haukiputaalla. Date: Taken on 2 June 2011. Source: Own work. Author: Estormiz. Permission(Reusing this file): I, the author of this work, will publish this photograph into Public Domain for anybody to use it in any way. Camera location65° 13′ 12.72″ N, 25° 28′ 20.65″ EView all coordinates using: OpenStreetMap 65.220200; 25.472403.
Description: English: Crossed Viper (Vipera berus) in a forest glade in Varepudas in Haukipudas, Finland. Suomi: Kyy (Vipera berus) metsäaukiolla Vareputaalla, Haukiputaalla. Date: Taken on 2 June 2011. Source: Own work. Author: Estormiz. Permission(Reusing this file): I, the author of this work, will publish this photograph into Public Domain for anybody to use it in any way. Camera location65° 13′ 12.72″ N, 25° 28′ 20.65″ EView all coordinates using: OpenStreetMap 65.220200; 25.472403.
Description: English: group of sunbathing adders (Vipera Berus) in early spring Nederlands: groepje zonnebadende adders (Vipera Berus) in het vroege voorjaar. Date: 14 March 2006. Source: Own work. Author: Piet Spaans.
Description: English: Adult female adder (Vipera berus) taken by Loch Shin, Sutherland, Scotland. Rather than slither silently away after being disturbed basking in the sun this individual chose to pose for a photograph! Suomi: Aikuinen naaraskyy (Vipera berus) Sutherlandissa, Skotlannissa. Date: 3 July 2008. Source: Own work. Author: Highlandtiercel.