Author 'Gontrand62' (Id 157918 ) : Rana arvalis is a species of amphibians of the family Ranidae. In French it is called a frog or frog oxyrhina fields [1]. It is a brown frog, as are the agile frog Rana Europe dalmatina or frog Rana temporaria Culture is like jam, the less you have, the more it is spread: 13: Lien : Http://gontrand62.fond-ecran-image.com/blog-photo/