Yarrow's Spiny Lizard

Sceloporus jarrovii

Reptiles & AmphibiansIn the app

Snout-vent length can range up to 105 mm. Displays a thick black stripe around neck mimicking a collar that is bordered by a thin, white stripe. Dorsum is either gray or…

Yarrow's Spiny Lizard illustration

How to identify

Snout-vent length can range up to 105 mm. Displays a thick black stripe around neck mimicking a collar that is bordered by a thin, white stripe. Dorsum is either gray or olive colored. Venter can be whitish or gray. Scales are large and keeled. Tail scales appear bigger than scales on rest of body. Males and females mate in the fall; females live-bear young in late June.

Range

From extreme southwestern New Mexico and southeastern Arizona southward through Durango and Zacatecas.

Habitat

Only found in mountainous areas like cliffs, rocky canyons, and hillsides. Terrain can be oak woodland, mixed oak and pine, and thornscrub. Occasionally climbs trees.

Variations

Males display blue markings on either side of venter and throat; females have either faint or no blue markings.

Similar species

Name and etymology

Genus

Sceloporus

Greek for leg (skelos) pores (porus), referencing femoral pores on back legs.

Origin

Language root

Sources

Species epithet

jarrovii

Honors Henry C. Yarrow.

Origin

Person

Honors

Henry C. Yarrow

Sources

  • Cope, 1875.

    Sceloporus undulatus tristichus. Cope, 1875 -

Explore more names in the etymology index.

At a glance

Range

From extreme southwestern New Mexico and southeastern Arizona southward through Durango and Zacatecas.

Habitat

Only found in mountainous areas like cliffs, rocky canyons, and hillsides. Terrain can be oak woodland, mixed oak and pine, a…

Guide

Reptiles and Amphibians of North America

Range map

Range map for Yarrow's Spiny Lizard

Approximate range. © Mapbox © OpenStreetMap

Sources & further reading