Description: A hybryd between Vipera berus(european adder) and Vipera ammodytes(nose-horned viper). There are 3 forms of hybrid: "berus-like", "ammodytes-like" and "intermediar". This is the "intermediar" form; only 12 specimens were ever found in 15 years. This is one of them and it lives in the Romanian Herpetological Society`s Vivarium in Cluj-Napoca City-Romania.
Photo: Alex Strugariu