Natrix (Grass Snakes)
Lower Classification
- Iberian grass snake (Natrix astreptophora)
- Barred grass snake (Natrix helvetica)
- Viperine water snake (Natrix maura)
- Large-headed water snake (Natrix megalocephala)
- Grass snake (Natrix natrix)
- Dice snake (Natrix tessellata)
