Rocky Mountain (Woodhouse’s) Toad (Anaxyrus woodhousii )

IdentificationWoodhousesToad_Bateson-400px.jpg

  • Size: ~3/4 inch (metamorph) to ~4.5 inches (adult)
  • Dorsal color: mottled tan or gray to dark brown or olive
  • Irregular dark spots and many warts
  • White dorsal stripe
  • Ventral color: cream, occasionally with black spots
  • L-shaped cranial crests (may be absent or weak in juveniles)
  • Mp3 of call (courtesy of Gary Nafis, californiaherps.com; contact Gary for permission to post on other websites)

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Sketch by Wyoming Game and Fish Department; Photo by Bateson

 

Eggs & TadpolesWoodhousesToad_eggs_WYNDD-400px.jpg

  • Eggs in strings up to 10 feet long
  • Dark tadpoles with gold flecking
  • Tadpole eyes medial; anal vent on midline

Egg photo by Wyoming Natural Diversity Database

 

Breeding Habitat

Lower elevation ponds, reservoirs, lakes and backwater areas of streams and rivers.

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Photo by Hamilton

 

Native Range

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Map by Wyoming Natural Diversity Database