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Thornscrub Hook-nosed Snake vs. Chihuahuan Hook-nosed Snake

Both live in the grassland and foothills of Santa Cruz County, out on rainy monsoon nights. A: Bold, square black saddles on cream in the Thornscrub Hook-nosed Snake; more than 25 thin, zigzag brown bars on grey or tan in the Chihuahuan Hook-nosed Snake. B: A wide red or orange stripe along each side, cut by the saddles in the Thornscrub Hook-nosed Snake; no red: grey or tan sides in the Chihuahuan Hook-nosed Snake.

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Thornscrub Hook-nosed Snake

Gyalopion quadrangulare

Chihuahuan Hook-nosed Snake

Gyalopion canum
Thornscrub Hook-nosed Snake vs. Chihuahuan Hook-nosed Snake: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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