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Lizards

Northern Alligator Lizard

Elgaria coerulea

Across the regions where it's common, the Northern Alligator Lizard peaks from March to October.

Shows up in 7 ecoregions and 3 states

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Lizards

Northern Alligator Lizard

Elgaria coerulea

Look, don't take. Many states regulate collecting reptiles and amphibians. Photograph it, log it on iNaturalist and leave it where you found it.

Description

The northern alligator lizard (Elgaria coerulea) is a species of medium-sized lizard in the family Anguidae. Adults reach a snout-to-vent length (SVL) of about 10 cm (3.9 in) and a total length (tailincluded tail) of roughly 27.5 cm (10.8 in).Wikipedia ↗

Habitat

The northern alligator lizard occurs along the Pacific Coast and in the Rocky Mountains from southern British Columbia through Washington, northern Idaho and western Montana south through Oregon to the coastal range and the Sierra Nevada in central California. As the map shows, the different subspecies have quite different geographic ranges, with E. c. principis being the most widely distributed, whereas E. c. coerulea occurs mainly around the San Francisco area but is also found farther north into Humboldt County.Wikipedia ↗

When it's active

During the spring breeding season, a male lizard grasps the head of a female with his mouth until she is ready to let him mate with her. Besides keeping her from running off to mate with another male, this probably shows her how strong and suitable a mate he is.Wikipedia ↗
Trevor Van Loon · CC BY 4.0

When and where it's active

Each row is its own calendar, counted from records in that area. Seasons shift by place.

PeakShoulderQuiet

Ecoregions

States

JanFebMarAprMayJunJulAugSepOctNovDec
CaliforniaOregonWashington

About the Northern Alligator Lizard

When is the Northern Alligator Lizard most active?

Across the regions where it's common, the Northern Alligator Lizard peaks from March to October.

Where does the Northern Alligator Lizard live?

It has enough records to show in 7 ecoregions and 3 states, including California, Oregon, and Washington.