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Western Black-tailed Rattlesnake vs. Western Massasauga

They meet in the grassland of west Texas and southern New Mexico. A: Many small scales in the Western Black-tailed Rattlesnake; nine big plates in the Western Massasauga. B: Black in the Western Black-tailed Rattlesnake; grey with dark bands in the Western Massasauga. C: Big: to 48 in in the Western Black-tailed Rattlesnake; small: rarely over 2 ft in the Western Massasauga. Venomous: leave rattlesnakes alone and give them room.

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Western Black-tailed Rattlesnake

Crotalus molossus

Western Massasauga

Sistrurus tergeminus
Western Black-tailed Rattlesnake vs. Western Massasauga: comparison sheet with the differences marked

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

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