Crotalus helleri or Crotalus oreganus helleri, also known commonly as the Southern Pacific rattlesnake,[3] the black diamond rattlesnake,[4] and by several other common names, is a pit viper species[5] or subspecies[3] found in southwestern California and south into Baja California, Mexico, that is known for its regional variety of dangerous venom types. It is sometimes considered a subspecies of Crotalus oreganus.[3]
^Cite error: The named reference McD99 was invoked but never defined (see the help page).
^"Crotalus oreganus ". The Reptile Database. www.reptile-database.org.
^ abc"Crotalus oreganus helleri ". Integrated Taxonomic Information System. Retrieved 28 November 2006.
^Wright AH, Wright AA (1957). Handbook of Snakes of the United States and Canada. Ithaca and London: Comstock Publishing Associates, a division of Cornell University Press. (7th printing, 1985). 1,105 pp. (in two volumes). ISBN 0-8014-0463-0. (Crotalus viridis helleri, pp. 1014–1018, Figure 290 + Map 67 on p. 951).
^Crotalus helleri at the Reptarium.cz Reptile Database. Accessed May 7, 2023.
Crotalushelleri or Crotalus oreganus helleri, also known commonly as the Southern Pacific rattlesnake, the black diamond rattlesnake, and by several...
has lost its rattle entirely, Crotalus lorenzoensis usually has no rattle, and both Crotalus ruber lucasensis and Crotalus estebanensis exhibit a tendency...
including the prairie rattlesnake (Crotalus viridis viridis), the nominate subspecies, and the Hopi rattlesnake (Crotalus viridis nuntius). The taxonomic...
Crotalus cerberus, also known as the Arizona black rattlesnake, a venomous pitviper species found in the southwestern United States Crotalushelleri,...
Mackessy (1988). "Venom ontogeny in the Pacific Rattlesnakes Crotalus viridis helleri and Crotalus viridis oreganus". Copeia. 1988: 92–101. S. P. Mackessy...
a venomous pitviper species found primarily in the United States. Crotalushelleri, also known as the Southern Pacific rattlesnake, a venomous pitviper...
species. Snakes present include the Southern Pacific rattlesnake (Crotalus oreganus helleri). Topanga State Park is home to many species of migratory and...
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