• Thumbnail for Crotalus willardi
    ridge-nosed rattlesnake, Willard's rattlesnake, Willard's rattler Crotalus willardi is a venomous pit viper species found in the southwestern United States...
    12 KB (1,274 words) - 09:59, 21 July 2024
  • Thumbnail for Crotalus willardi obscurus
    New Mexico ridge-nosed rattlesnake. Animas ridge-nosed rattlesnake, Crotalus willardi obscurus is a venomous pitviper subspecies found in northwestern Mexico...
    3 KB (307 words) - 19:42, 31 May 2022
  • Thumbnail for Crotalus
    has lost its rattle entirely, Crotalus lorenzoensis usually has no rattle, and both Crotalus ruber lucasensis and Crotalus estebanensis exhibit a tendency...
    36 KB (2,375 words) - 07:50, 11 October 2024
  • Arizona state reptile is the Arizona ridge-nosed rattlesnake (Crotalus willardi willardi). Common snapping turtle (Chelydra serpentina) - introduced Painted...
    10 KB (620 words) - 00:23, 25 August 2024
  • Arizona State Reptile is the Arizona ridge-nosed rattlesnake (Crotalus willardi willardi). Arizona Milk Snake Arizona mountain kingsnake Arizona Patch-nosed...
    2 KB (177 words) - 06:47, 16 April 2023
  • Thumbnail for List of crotaline species and subspecies
    rattlesnake Crotalus viridis, Prairie rattlesnake Crotalus viridis nuntius, Hopi rattlesnake Crotalus viridis viridis, Prairie rattlesnake Crotalus willardi, Ridge-nosed...
    21 KB (1,960 words) - 04:13, 2 September 2024
  • Thumbnail for List of U.S. state reptiles
    Nevada). Under Crotalus (one of two rattlesnake genera), Arizona named Crotalus willardi willardi, while West Virginia chose Crotalus horridus. With Phrynosoma...
    88 KB (7,361 words) - 12:58, 23 October 2024
  • Crotalus totonacus Crotalus transversus Crotalus triseriatus Crotalus tzabcan Crotalus vegrandis Crotalus viridis Crotalus willardi Crotaphopeltis Crotaphopeltis...
    102 KB (8,025 words) - 18:41, 21 March 2022
  • crocodile) Crotalus catalinensis (Catalina rattlesnake) Crotalus pusillus (Tancitarian dusky rattlesnake) Crotalus unicolor (Aruba rattlesnake) Crotalus willardi...
    25 KB (2,265 words) - 21:36, 19 December 2023
  • Thumbnail for Southwestern United States
    only in Arizona; several sub-species of the ridge-nosed rattlesnake (Crotalus willardi), the most recent rattlesnake species to be discovered in the United...
    131 KB (12,515 words) - 18:34, 17 November 2024
  • Thumbnail for Aridoamerica
    only in Arizona; several sub-species of the ridge-nosed rattlesnake (Crotalus willardi), and the desert massasauga (Sistrurus catenatus edwardsii). Other...
    26 KB (2,406 words) - 01:55, 18 November 2024
  • Thumbnail for Chihuahua (state)
    rattlesnake Crotalus scutulatus, twin-spotted rattlesnake Crotalus pricei, prairie rattlesnake Crotalus viridis, ridge-nosed rattlesnake Crotalus willardi, whip...
    130 KB (14,225 words) - 11:43, 2 November 2024
  • transversus Taylor, 1944 Crotalus triseriatus (Wagler, 1830) Crotalus tzabcan Klauber, 1952 Crotalus viridis (Rafinesque, 1818) Crotalus willardi Meek, 1905 Mixcoatlus...
    84 KB (6,738 words) - 02:12, 20 March 2024
  • Thumbnail for San Diego Zoo
    rattlesnakes, western diamondback rattlesnakes, Chiapan beaded lizards, crotalus willardi, yellow-blotched palm pit vipers, Chinese crocodile lizards, and Sulawesi...
    88 KB (9,074 words) - 07:43, 20 November 2024
  • Thumbnail for List of Arizona state symbols
    (Oncorhynchus gilae apache) 1986 Mammal Ring-tailed cat (Bassariscus astutus) 1986 Reptile Arizona ridge-nosed rattlesnake (Crotalus willardi willardi) 1986...
    15 KB (706 words) - 15:37, 16 April 2024
  • Thumbnail for Index of Arizona-related articles
    Canyon State Arizona state reptile: Arizona ridge-nosed rattlesnake (Crotalus willardi) Arizona state seal: Great Seal of the State of Arizona Arizona state...
    25 KB (2,222 words) - 18:40, 22 October 2024
  • example study is for snakes, the Animas ridge-nosed rattlesnake, Crotalus willardi obscurus. It is being studied in 3 sky island ranges: Animas Mountains...
    4 KB (358 words) - 03:34, 3 January 2022
  • rattlesnake (Crotalus adamanteus) Crotalus angelensis Crotalus aquilus Western diamondback rattlesnake (Crotalus atrox) Crotalus basiliscus Crotalus caliginis...
    180 KB (12,463 words) - 17:55, 12 November 2024
  • Thumbnail for Rufous-crowned sparrow
    the foraging behavior of the Arizona Ridge-Nosed Rattlesnake Crotalus willardi willardi (Serpentes: Crotalidae)". Bulletin of the Maryland Herpetological...
    36 KB (4,091 words) - 20:24, 15 September 2024
  • rattlesnake (Crotalus adamanteus) LC Western diamondback rattlesnake (Crotalus atrox) LC Sidewinder (Crotalus cerastes) LC Timber rattlesnake (Crotalus horridus)...
    76 KB (4,595 words) - 02:57, 16 November 2024
  • Thumbnail for Sierra Madre Occidental pine–oak forests
    the rock rattlesnake (Crotalus lepidus), twin-spotted rattlesnake (Crotalus pricei), ridgenose rattlesnake (Crotalus willardi), and some spiny lizards...
    22 KB (2,507 words) - 01:23, 28 October 2024
  • Thumbnail for David G. Barker
    Infraspecific Relationships and Biogeography of the Ridgenose Rattlesnake, Crotalus willardi. (MS thesis) In: Campbell, Jonathan A., and Edmund D. Brodie, Jr....
    7 KB (930 words) - 14:40, 29 June 2024
  • locality for genus †Crioceridea dubia – type locality for species CrotalusCrotalus viridis †Croton †Croton furculatum †Cryptagriotes – type locality...
    263 KB (16,675 words) - 20:38, 24 November 2024