aruba island rattlesnake crotalus durissus unicolor

animal aruba branch caribbean carribean crotalus dangerouse durissus endangered endemic eye eyes fauna frog highly island iucn list monkey nature phyllomedusa pitviper poison predator rare rarest rattle rattlesnake rattlesnakele red reptile reptilian sauvagii scales schlange sitting skin snake snakeskin tail tropical unicolor viper waxy wildlife