FWS Focus


The Dixie Valley toad is the smallest toad within the A. boreas species complex. This specie's dorsum has a broken cream stripe and irregularly distributed rust-colored tubercles with black margins. Its dorsal ground color contains hues of olive with small irregular black specks. The face is heavily specked and the parotoid glands are tan. The throat is immaculate white while the white venter is heavily mottled with black. It is distinguished from other species in the A. boreas species complex by its unique coloration, narrower head with longer relative snout length, shorter parotoids, shorter hind legs, large closely set eyes, and large tympanum. 

Scientific Name

Anaxyrus williamsi
Common Name
Dixie Valley toad
FWS Category

Location in Taxonomic Tree

Identification Numbers




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