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Scientific name: Xantusia vigilis
Common name: Desert Night Lizard
Size: 1.0-1.77 in (2.6-4.5 cm)
Distinguishing characters: A slim species; grey, olive, or dark brown dorsum with fine black speckles; beige stripe edged in black from eye to shoulder; smooth, granular scales on dorsum, large and squarish on venter; lacks eyelids; pupils vertical. Juveniles: Similar to adults; darker dorsal coloration.
Dimorphism: Male has enlarged femoral pores.
Similar Species: Xantusia henshawi: Has flattened head and body; prominent, large dorsal blotches; larger adult size.
Additional notes: May occur sparingly in study area. Often associated with dead branches of Yucca.
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