6. Coluber scalaris.

7. Coronella austriaca (north and north-west).

8. Coronella girondica.

9. Cœlopeltis monspessulana.

10. Macroprotodon cucullatus (centre and south, Baleares).

11. Vipera berus (north-west).

12. Vipera aspis (Pyrenees).

13. Vipera latastii (absent from the north).

VII. Italy, with Ticino and Corsica

1. Tropidonotus natrix.