"Animalia" . . . . . . . . . . . . "Reptilia" . . "Vipera" . . "Viperidae" . "Vipera bulgardaghica Nilson and Andr\u00E9n 1985" . "Squamata" . "Nilson and Andr\u00E9n 1985" . . "Vipera bulgardaghica" . "Chordata" . .