Rocky Mountain Amphibian Project

A WYOMING BIODIVERSITY CITIZEN SCIENCE INITIATIVE PROJECT


Plains Spadefoot (Spea bombifrons)

The Plains Spadefoot

IDENTIFICATIONPlainsSpadefoot_Snoberger-cropped.jpg

  • Size: ~1/2 inch (metamorph) to ~2.5 inches (adult)
  • Dorsal color: light gray or brown with dark mottling
  • Often with orange small warts
  • Relatively smooth skin
  • Ventral color: white
  • Vertical pupils
  • Bony lump (boss) between the eyes (see below)
  • Mp3 of call (courtesy of NatureNorth.com)

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Drawing from Baxter & Stone 1980; Photo by Charlotte Snoberger

 

EGGS & TADPOLES

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

 

9e70cc0c3bfadb0eec219b7d1c0e1d82_f252.jpgPlainsSpadefoot_juvenile_Keehn-400px.jpg

Photo by Brady                                                                                         Photo by Charlotte Snoberger
 

 

BREEDING HABITAT

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

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Photo by Wyoming Natural Diversity Database

 

NATIVE RANGE

PlainsSpadefoot.jpg

Map by Wyoming Natural Diversity Database