Chihuahuan Lyre Snake
Trimorphodon vilkinsonii
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- T. vilkinsonii – Brewster Co, TX – photo by Rob Klockman
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- T. vilkinsonii – El Paso Co, TX – photo by Michael Price
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- T. vilkinsonii – Presidio Co, TX – photo by Benjamin Stupavsky
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- T. vilkinsonii – Presidio Co, TX – photo by Benjamin Stupavsky
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- T. vilkinsonii – Presidio Co, TX – photo by Nathan Wells
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- T. vilkinsonii – Map by Tom Lott, SWCHR
DISTRIBUTION: In our region, Trimorphodon vilkinsonii occurs only in Trans-Pecos Texas from Big Bend National Park northwestward along the Rio Grande River to El Paso and also in south-central New Mexico along both sides of the Rio Grande River.
LEGAL STATUS: Trimorphodon vilkinsonii is protected as a Threatened Species in the State of Texas. It has no protected status in New Mexico.
MEANING OF SCIENTIFIC NAME: Trimorphodon vilkinsonii (Cope – 1886)
Genus: Trimorphodon, Greek – tri = three + morph = shape + odon = tooth
Species: vilkinsonii, honors Edward Wilkinson
Ref. Ellen Beltz 2006
Ref. E. Jaeger 1962