frogs

 of Tennessee

 

Eastern Spadefoot

Scaphiopus holbrookii
 
Photo by Lisa Powers

Description:  Eastern spadefoots (Scaphiopus holbrookii) are 1.75 - 3 inches long. They have a spade-like protuberance on each hind foot for digging. Their coloration varies from gray to brown. A lyre shape may be formed by two lines on the back. This is our only frog or toad with vertical pupils

Habitat: They are often found in forested areas with loose or sandy soil.

Life History: Eastern spadefoots are explosive breeders and heavy summer rains initiate breeding. The eggs are laid in easily broken strands and attached to vegetation. Hatching occurs in 24 - 72 hours in hot weather and may take up to one week in cooler weather. Metamorphosis of tadpoles takes less than one month.

Range: They are found statewide, except in the Blue Ridge Mountains.

Additional Notes:

Behavior: They spend most of their time underground.

Subspecies Occurring in Tennessee:

 

Distribution of the Eastern Spadefoot in Tennessee

Map by Susan Marden, TWRA, GIS Lab

Photo by Lisa Powers

Photo by Lisa Powers

Photo by Lisa Powers

Photo by Lisa Powers

 

Photo by Lisa Powers

 

 Photo by Lisa Powers

 

Photo by Lisa Powers

 

Photo by Lisa Powers

 

Photo by Lisa Powers

 

Photo by Lisa Powers

 

Photo by Lisa Powers

 

Photo by Lisa Powers

 

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September 2017