A medium-sized rattlesnake similar to western diamondback but with greener tones. Among the most venomous North American snakes — venom contains potent neurotoxins not found in most other rattlesnakes.

§ Quick facts

SizeLength 60–135 cm (24–53 in)
Weight200–680 g (7–24 oz)
LifespanWild 15–20 years
OrderSquamata
FamilyCrotalidae

§ Encyclopedia

Crotalus scutulatus is species of rattlesnake, a venomous pitviper in the family Viperidae.

Source: Wikipedia — Crotalus scutulatus Licensed under CC BY-SA 4.0

§ Identification

Field marks. Medium-bodied gray-brown rattlesnake with darker diamond patterns. Often greenish tones.

Similar species. Western Diamondback (similar, different range edge). Sidewinder (much smaller, sideways movement).

Voice. Loud rattle warning.

§ Diet & behavior

Diet. Small mammals (especially rodents), birds, lizards.

Behavior. Among the most dangerous US rattlesnakes due to neurotoxic venom. Aggressive when cornered.

§ Range

Mojave and Sonoran deserts (CA, NV, UT, AZ, NM, TX, Mexico)

§ Habitat

Deserts, dry grasslands, scrub

§ Threats

Habitat loss, vehicle strikes, killing on sight, climate-driven range shifts.

§ Conservation status

According to the IUCN Red List, the mojave rattlesnake is currently classified as Least Concern.

§ What helps

Watch step on desert trails. Wear sturdy boots. Don't kill on sight — most bites are from handling.

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§ Further reading

§ Sources cited

  • Arizona Game and Fish Department
  • The Orianne Society
  • iNaturalist
  • IUCN Red List 2007