Anguis fragilis
Reptiles that feed on slugs include mainly snakes and lizards. Some colubrid snakes are known predators of slugs. Coastal populations of the garter snake, "Thamnophis elegans", have a specialised diet consisting of slugs, such as "Ariolimax", while inland populations have a generalized diet. One of its congeners, the Northwestern garter snake ("Thamnophis ordinoides"), is not a specialized predator of slugs but occasionally feeds on them. The redbelly snake ("Storeria occipitomaculata") and the brown snake ("Storeria dekayi") feed mainly but not solely on slugs, while some species in the genus "Dipsas", "Sibynomorphus" (e.g. "Sibynomorphus neuwiedi") and the common slug eater snake ("Duberria lutrix"), are exclusively slug eaters. Several lizards include slugs in their diet. This is the case in the slowworm ("Anguis fragilis"), the bobtail lizard ("Tiliqua rugosa"), the she-oak skink ("Cyclodomorphus casuarinae") and the common lizard ("Zootoca vivipara").