Natrix helvetica(Serpentes: Colubridae)

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All photographs are used with permission from the photographers (see list of photographers)

	Natrix helvetica cetti Monte Tiscali, Oliena, Nuoro Province, Sardinia, Italy. Photographer: Henrik Bringsøe See more images at: Nature's Window
	Natrix helvetica England. Photographer: Rune Midtgaard See more images at: Nature's Window