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Crotalus angelensis KLAUBER, 1963

IUCN Red List - Crotalus angelensis - Least Concern, LC

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Higher TaxaViperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Isla Angel Rattlesnake
G: Angel-Klapperschlange
S: Cascabel de Isla Angel de la Guarda 
SynonymCrotalus mitchellii angelensis KLAUBER 1963
Crotalus mitchellii angelensis — LINER 1994
Crotalus angelensis — GRISMER 1999
Crotalus mitchellii angelensis — BEAMAN & HAYES 2008
Matteoea angelensis — HOSER 2009
Crotalus angelensis — MEIK et al. 2015 
DistributionMexico (Isla Angel de la Guardia)

Type locality: "about 4 miles southeast of Refugio Bay, at 1500 feet elevation, Isla Angel de la Guarda, Gulf of California, Mexico (near 29°29 1/2' N, 113°33' W)."  
TypesHolotype: SDNHM = SDSNH 51994; paratypes SDNHM = SDSNH 

Nomenclature: Hoser’s 2009 classification and nomenclature has been rejected as unnecessary and unavailable by WÜSTER & BERNILS 2011.

Synonymy: Listed as a synonym of Crotalus mitchellii by WALLACH et al. 2014: 194 and Heimes 2016: 450.

Distribution: see map in Meik et al. 2015: Fig. 1. Populations from Isla Cabeza de Caballo have been split off as C. polisi MEIK et al. 2018. 
EtymologyNamed after the type locality. 
  • Beaman, K.R. & Hayes, W.K. 2008. Rattlesnakes: Research Trends and Annotated Checklist. In: Hayes et al. (eds), The biology of rattlesnakes. Loma Linda University Press, pp. 5-16
  • GARCÍA-PADILLA, ELI; JORGE H. VALDEZ VILLAVICENCIO, ANNY PERALTA GARCÍA 2018. Las Serpientes de Cascabel más allá del continente. Especies - get paper here
  • Gottscho, Andrew, Sam Murray, Heather Heinz and Julio A. Lemos-Espinal. 2014. Crotalus angelensis (Isla Ángel de la Guarda rattlesnake) diet and predation. Herpetological Review 45 (3): 514 - get paper here
  • Grismer, L. Lee. 1999. An evolutionary classification of reptiles on islands in the Gulf of California, México. Herpetologica 55 (4): 446-469 - get paper here
  • Hoser, R. 2009. A reclassification of the rattlesnakes; species formerly exclusively referred to the genera Crotalus and Sistrurus. Australasian J. Herpetol. 3: 1-21 - get paper here
  • Klauber, Laurence M. 1963. A new insular subspecies of the speckled rattlesnake. Transactions of the San Diego Society of Natural History 13: 73-80 - get paper here
  • Kwet, A. 2015. Gefleckte Klapperschlangen sind ein Artenkomplex. Reptilia (Münster) 20 (114): 6-7 - get paper here
  • Meik JM, Makowsky R. 2017. Minimum area thresholds for rattlesnakes and colubrid snakes on islands in the Gulf of California, Mexico. Ecol Evol. 2017;00:1–7 - get paper here
  • Meik JM, Streicher JW, Lawing AM, Flores-Villela O, Fujita MK 2015. Limitations of Climatic Data for Inferring Species Boundaries: Insights from Speckled Rattlesnakes. PLoS One 10 (6): e0131435; doi:10.1371/journal.pone.0131435 - get paper here
  • Meik, Jesse M.; Sarah Schaack, Oscar Flores-Villela & Jeffrey W. Streicher 2018. Integrative taxonomy at the nexus of population divergence and speciation in insular speckled rattlesnakes. Journal of Natural History 52: 989-1016; DOI: 10.1080/00222933.2018.1429689 - get paper here
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