Chordates • Earth.com

Mexican horned pitviper

(Ophryacus undulatus)

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Description

Ophryacus undulatus is a venomous pitviper species found in the mountains of central and southern Mexico.No subspecies are currently recognized.Adults grow to 55–70 centimetres (21 5⁄8–27 1⁄2 inches) in length and are moderately stout.Elongated supraocular scales form a pair of "horns" or "spines" over the eyes.The color pattern consists of a silvery-gray ground color overlaid with a series of black dorsal blotches that merge to form a broad wavy stripe.Black speckling is present on the flanks.The top of the head is black.

Taxonomic tree:

Domain:
Kingdom: Animalia
Phylum:
Class: Reptilia
Order:Squamata
Family:Viperidae
Genus:Ophryacus
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