• Thumbnail for Crotalus helleri
    Crotalus helleri or Crotalus oreganus helleri, also known commonly as the Southern Pacific rattlesnake, the black diamond rattlesnake, and by several...
    12 KB (1,190 words) - 12:03, 27 January 2024
  • 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 (2,405 words) - 02:33, 1 July 2024
  • Thumbnail for Crotalus viridis
    including the prairie rattlesnake (Crotalus viridis viridis), the nominate subspecies, and the Hopi rattlesnake (Crotalus viridis nuntius). The taxonomic...
    18 KB (1,975 words) - 14:50, 19 February 2024
  • Crotalus cerberus, also known as the Arizona black rattlesnake, a venomous pitviper species found in the southwestern United States Crotalus helleri,...
    786 bytes (111 words) - 04:23, 4 April 2021
  • Thumbnail for List of crotaline species and subspecies
    black rattlesnake Crotalus oreganus concolor, Midget faded rattlesnake Crotalus oreganus helleri, Southern Pacific rattlesnake Crotalus oreganus lutosus...
    22 KB (1,945 words) - 07:39, 17 August 2024
  • Thumbnail for Crotalus concolor
    Mackessy (1988). "Venom ontogeny in the Pacific Rattlesnakes Crotalus viridis helleri and Crotalus viridis oreganus". Copeia. 1988: 92–101. doi:10.2307/1445927...
    16 KB (1,917 words) - 04:32, 4 August 2024
  • Thumbnail for Edmund Heller
    Southern Pacific rattlesnake (Crotalus helleri), Heller's coral snake (Micrurus lemniscatus helleri), a skink (Panaspis helleri), the red-necked keelback...
    7 KB (617 words) - 04:56, 27 June 2024
  • a venomous pitviper species found primarily in the United States. Crotalus helleri, also known as the Southern Pacific rattlesnake, a venomous pitviper...
    708 bytes (103 words) - 00:47, 23 March 2020
  • rattlesnake (Crotalus lutosus) Midget faded rattlesnake (Crotalus (oreganus) concolor) Southern Pacific rattlesnake (Crotalus (oreganus) helleri) Twin-spotted...
    76 KB (4,595 words) - 15:57, 5 October 2023
  • Thumbnail for Topanga State Park
    species. Snakes present include the Southern Pacific rattlesnake (Crotalus oreganus helleri). Topanga State Park is home to many species of migratory and...
    15 KB (1,578 words) - 01:41, 3 August 2023
  • rattlesnake (Crotalus adamanteus) Crotalus angelensis Crotalus aquilus Western diamondback rattlesnake (Crotalus atrox) Crotalus basiliscus Crotalus caliginis...
    180 KB (12,457 words) - 20:10, 22 July 2023
  • Thumbnail for Santa Catalina Island (California)
    notable insect on the island. The Southern Pacific rattlesnake (Crotalus oreganus helleri) is also present on the island. This species should not be confused...
    91 KB (9,104 words) - 23:45, 15 August 2024
  • nicefori Troglodytes monticola Myadestes lanaiensis Myadestes palmeri Turdus helleri Turdus xanthorhynchus Calyptura cristata Phylloscartes ceciliae Cleptornis...
    125 KB (6,567 words) - 02:48, 18 August 2024
  • siemiradzkii Spinus yarrellii Telespiza cantans Acrobatornis fonsecai Asthenes helleri Asthenes usheri Clibanornis erythrocephalus Cranioleuca berlepschi Cranioleuca...
    212 KB (12,280 words) - 18:41, 5 June 2024