Rocky Mountain Amphibian Project

A WYOMING BIODIVERSITY CITIZEN SCIENCE INITIATIVE PROJECT


Wyoming Toad (Anaxyrus baxteri)

The Wyoming Toad

IDENTIFICATIONWyomingToad_WYNDD-320px.jpg

  • Endangered species, unlikely to be observed outside of the Laramie plains
  • Size: ~1/2 inch (metamorph) to ~2.5 inches (adult)
  • Dorsal color: tan to dark brown
  • Dark blotches surrounding warts
  • Pale dorsal stripe
  • Ventral color: cream or white with  black spots
  • Cranial crests form parallel ridges; may be fused to look like one wide ridge with a groove in the middle
  • Mp3 of call (Audio courtesy of the Acoustic Atlas at MSU Library)

Adult photo by Wyoming Natural Diversity Database

 

 

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Sketch by Wyoming Game and Fish Department
Adult calling photo by Clarke
Metamorph photo by Wendy Estes-Zumpf

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EGGS & TADPOLES

  • Eggs in long strings
  • Uniformly dark black tadpoles with anal vent on midline
  • Tadpole eyes are medial

Tadpole photo by Wyoming Natural Diversity Database

 

BREEDING HABITAT

Shallow water in temporary or permanent ponds, wetlands, oxbows, and flood-plains in the Laramie basin.

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Photo by Hamilton