Animalia > Chordata > Amphibia > Anura > Scaphiopodidae > Spea > Spea hammondii

Spea hammondii (Western Spadefoot)

Synonyms: Scaphiopus hammondii; Scaphiopus hammondii hammondii; Spea hammondii hammondii

Wikipedia Abstract

The western spadefoot toad (Spea hammondii) is a relatively smooth-skinned species of American spadefoot toad. Its eyes are pale gold with vertical pupils. It has a green or grey dorsum often with skin tubercles tipped in orange, and it is a whitish color on the ventrum. It has a wedge-shaped black spade on each hind foot. Adult toads are between 3.8 and 7.5 cm (1.5 and 3.0 in) long. Juvenile western spadefoot toads look similar to adults, but have more distinct spotting.
View Wikipedia Record: Spea hammondii

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 48.63
EDGE Score: 4.6


Diet [1]  Carnivore (Invertebrates)
Litter Size [1]  293
Litters / Year [1]  1
Nocturnal [1]  Yes
Snout to Vent Length [1]  2.402 inches (6.1 cm)


Name Countries Ecozone Biome Species Report Climate Land
California Central Valley grasslands United States Nearctic Temperate Grasslands, Savannas, and Shrublands
California coastal sage and chaparral Mexico, United States Nearctic Mediterranean Forests, Woodlands, and Scrub
California interior chaparral and woodlands United States Nearctic Mediterranean Forests, Woodlands, and Scrub
California montane chaparral and woodlands United States Nearctic Mediterranean Forests, Woodlands, and Scrub

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No


Bubo virginianus (Great Horned Owl)[2]
Falco sparverius (American Kestrel)[2]
Thamnophis hammondii (Two-striped Garter Snake)[3]

Range Map

External References

NatureServe Explorer


Attributes / relations provided by
1Oliveira, Brunno Freire; São-Pedro, Vinícius Avelar; Santos-Barrera, Georgina; Penone, Caterina; C. Costa, Gabriel. (2017) AmphiBIO, a global database for amphibian ecological traits. Sci. Data.
2Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
3Anurans as prey: an exploratory analysis and size relationships between predators and their prey, L. F. Toledo, R. S. Ribeiro & C. F. B. Haddad, Journal of Zoology 271 (2007) 170–177
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2023-06-13; License: CC BY 4.0