Rocky Mountain Amphibian Project

A WYOMING BIODIVERSITY CITIZEN SCIENCE INITIATIVE PROJECT


Great Basin Spadefoot (Spea intermontana)

The Great Basin Spadefoot

IDENTIFICATIONspadefoot.jpg

  • Size: ~1/2 inch (metamorph) to ~2 inches (adult)
  • Dorsal color: light gray, brown or olive
  • Small dark spots
  • Small warts (often orange) present
  • Relatively smooth skin
  • Vertical pupils
  • Glandular lump (boss) between the eyes
  • Mp3 of call (courtesy of Gary Nafis, californiaherps.com; contact Gary for permission to post on other websites)

 

 



Photo by Zack Walker

spadefoot.png      

Photos depicting a GB Spadefoot digging itself into the sand by Bonnie Heidel

 

 EGGS & TADPOLES

  • Eggs in small masses attached to submerged vegetation
  • Tadpole eyes are medial, anal vent on midline
  • Tadpoles often pale brown to greenish in color

 

BREEDING HABITAT

After heavy rains in temporary puddles, ditches, pools and ponds in prairies, sagebrush steppe, sandhills, and desert scrub.

AmphibianHabitat_Heidel.JPG

Photo by Bonnie Heidel

 

NATIVE RANGE

GreatBasinSpadefoot.jpg

Map by Wyoming Natural Diversity Database