Northern Black-tailed Rattlesnake
Crotalus molossus molossus
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- C. m. molossus – Cochise Co, AZ – photo by Bill White
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- C. m. molossus – Crockett Co, TX – photo by Ben Stupavsky
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- C. m. molossus – Crockett Co, TX – photo by Ben Stupavsky
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- C. m. molossus – Crockett Co, TX – photo by Ben Stupavsky
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- C. m. molossus – Crockett Co, TX – photo by Ben Stupavsky
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- C. m. molossus – Luna Co, NM – photo by James D. Bear
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- C. m. molossus – Maricopa Co, AZ – photo by Kris Haas
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- C. m. molossus – Pima Co, AZ – photo by Kent VanSooy
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- C. m. molossus – Pima Co, AZ – photo by Kent VanSooy
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- C. m. molossus – Pima Co, AZ – photo by Orry Martin
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- C. m. molossus – Pima Co, AZ – photo by Steve Bledsoe
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- C. m. molossus – Santa Cruz Co, AZ – photo by Will Wells
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- C. m. molossus – Upton Co, TX – photo by Ben Stupavsky
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- C. m. molossus – Val Verde Co, TX – photo by Gerald Keown, SWCHR
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- C. m. molossus – Val Verde Co, TX – photo by Gerald Keown, SWCHR
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- C. m. molossus – White Sands, NM – photo by Doug Burkett
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- C. m. molossus – Yuma Co, AZ – photo by Tom Brennan, AzPARC
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- C. m. molossus Habitat – Santa Cruz Co, AZ – photo by Gerald Keown, SWCHR
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- C. m. molossus Habitat – Val Verde Co, TX – photo by Gerald Keown, SWCHR
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- Map by Steve Bledsoe, SWCHR
DISTRIBUTION: In our region, Crotalus m. molossus occurs throughout the central and Trans-Pecos regions of Texas and across the southern and central portions of New Mexico and Arizona.
LEGAL STATUS: No Listings
MEANING OF SCIENTIFIC NAME: Crotalus pyrrhus (Cope – 1867)
Genus: Crotalus, Greek – krotalon = a rattle ref. rattle on tail
Species/Subspecies: molossus, Latin – molossos = Molossus hound or mastiff
Ref. Ellen Beltz 2006
Ref. E. Jaeger 1962