Anaxyrus debilis
Mon . 18 Aug 2018

Anaxyrus debilis

Bufo debilis Girard, 1854
Bufo insidior Girard, 1854

The North American green toad, Anaxyrus debilis, also known by its old name Bufo debilis, is a species of toad found in the southwestern United States in the states of Arizona, New Mexico, Colorado, Kansas, and Texas, as well as in northern Mexico in the states of Tamaulipas, San Luis Potosí, Durango, and Zacatecas It is commonly called green toad with many variants2


  • 1 Description
  • 2 Habitat and reproduction
  • 3 Subspecies
  • 4 See also
  • 5 References


Green toads are typically bright to pale green in color, with black spotting3 They are not large toads; adult males are about 37–46 mm 15–18 in in snout–vent length and females 44–54 mm 17–21 in4

Habitat and reproductionedit

Green toads are relatively widespread and at least locally common1 They are secretive, however, only readily found during and immediately after periods of rainfall; their habitat is semi-arid and often very dry Breeding occurs from late March to August, stimulated by summer rains Males move from drier, terrestrial habitat to aquatic breeding sites where they form choruses Females are attracted by chorusing males Breeding aggregations do not usually last long, only a few days4


Two subspecies, originally described as separate species, can be identified,234 but this distinction is disputed:2

  • Eastern green toad, Anaxyrus debilis debilis
  • Western green toad, Anaxyrus debilis insidior

See alsoedit

  • European green toad Bufo viridis, a species that is only distantly related, but shares the same common name


  1. ^ a b "Anaxyrus debilis" IUCN Red List of Threatened Species Version 20132 International Union for Conservation of Nature 2004 Retrieved 24 May 2014 
  2. ^ a b c Frost, Darrel R 2014 "Anaxyrus debilis Girard, 1854" Amphibian Species of the World: an Online Reference Version 60 American Museum of Natural History Retrieved 24 May 2014 
  3. ^ a b Northern Prairie Wildlife Research Center 2013 "Green Toad, Bufo debilis" Checklist of Amphibian Species and Identification Guide US Geological Survey Archived from the original on 25 May 2014 Retrieved 24 May 2014 
  4. ^ a b c "Anaxyrus debilis" AmphibiaWeb: Information on amphibian biology and conservation web application Berkeley, California: AmphibiaWeb 2014 Retrieved 24 May 2014 

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