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Description
The Northern Alligator Lizard is olive brown or gray with a few or many small dark spots. It has
dark longitudinal stripes on the belly. There is a prominent fold of skin on each side of the
body, something common to all species in this family. Alligator Lizards can grow to 25 cm in
total length, counting the tail which makes up approximately half of the length.
Confusing Species
The only other lizard found in British Columbia is the
Western Skink which has a broad brown stripe
down the back with a whitish stripe on each side. The tails of the juveniles are bright blue.
Distribution
The Northern Alligator Lizard occurs across much of southern British Columbia, from west of the
mountains to Vancouver Island. To the south it is found along the coast to California.
Habitat
Northern Alligator Lizards prefer open wooded areas and sometimes grassland areas. They are
often found under bark or rocks.
Reproduction
Mating occurs in the spring and females give birth to live young 7-10 weeks later. One female
can give birth to up to 15 young, although half this number is more common.
Natural History
The Northern Alligator Lizard is active at cooler temperatures than most other lizards, which
probably explains its presence in Canada. It is carnivorous, feeding on insects, spiders and
snails. The Northern Alligator Lizard is extremely wary and darts for cover at any sign of
danger. If attacked, the lizard's tail will break off at a fracture plane. The twitching tail
distracts the would-be preadator while the lizard escapes. A new tail is eventually re-grown.
Conservation Concerns
This species is widespread in BC and is considered to be not at risk.
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