The venom is also not considered particularly virulent and one would have to be extremely stupid in trying to handle the snake to get bitten at all. Most snakes run for cover at the sound or vibration of something large approaching. Snakes are quite variable in colouring, and some young ones, as these may have been, are more strongly patterned. According to my book there are 8 species of snake in the Algarve. Grows to nearly 2m.
Heavy brow ridges.
Juveniles may have irregular light markings, but can have more regular pattern around head. Fangs at back of mouth. Grows to 1.5m. Bold pattern of dark edged blotches. Can be found near human habitat and buildings.