NATURAL HISTORY · CATALOGUE RECORD
Anaxyrus mexicanus (Brocchi, 1879)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Southwestern Toad (Anaxyrus mexicanus). Species of amphibian.
Juan Cruzado Cortés · CC BY-SA 4.0 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The southwestern toad or Mexican Madre toad (Anaxyrus mexicanus), formerly Bufo mexicanus, is a species of toad in the family Bufonidae. It is endemic to north-western Mexico and found on the Sierra Madre Occidental in eastern Sonora and western Chihuahua and south to south-western Durango.
Its natural habitats are conifer forests, commonly along low rivers and streams, its breeding habitat. It is a rare species threatened by habitat disturbance, including alterations causing the desiccation of streams and soils.
Wikipedia contributors, Southwestern toad; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T15:08:13.216854+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Anaxyrus mexicanus (Brocchi, 1879)
- Name authority
- (Brocchi, 1879)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Amphibia
- Order
- Anura
- Family
- Bufonidae
- Genus
- Anaxyrus
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAmphibia
- orderAnura
- familyBufonidae Gray, 1825
- genusAnaxyrus Tschudi, 1845
- speciesAnaxyrus mexicanus (Brocchi, 1879)
Close classified relatives
These entries share the source’s genus, Anaxyrus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| American ToadAnaxyrus americanus (Holbrook, 1836) | BufonidaeChordata | Accepted speciesRecorded extant |
| Anaxyrus kelloggi (Taylor, 1938) | BufonidaeChordata | Accepted speciesRecorded extant |
| Amargosa ToadAnaxyrus nelsoni (Stejneger, 1893) | BufonidaeChordata | Accepted speciesRecorded extant |
| Great Plains ToadAnaxyrus cognatus (Say in James, 1823) | BufonidaeChordata | Accepted speciesRecorded extant |
| Anaxyrus compactilis (Wiegmann, 1833) | BufonidaeChordata | Accepted speciesRecorded extant |
| Chihuahuan Green ToadAnaxyrus debilis (Girard, 1854) | BufonidaeChordata | Accepted speciesRecorded extant |
| Anaxyrus williamsi (Gordon, Simandle & Tracy, 2017) | BufonidaeChordata | Accepted speciesRecorded extant |
| Black ToadAnaxyrus exsul (Myers, 1942) | BufonidaeChordata | Accepted speciesRecorded extant |
| Arizona ToadAnaxyrus microscaphus (Cope, 1867) | BufonidaeChordata | Accepted speciesRecorded extant |
| Houston ToadAnaxyrus houstonensis (Sanders, 1953) | BufonidaeChordata | Accepted speciesRecorded extant |
| Sonoran Green ToadAnaxyrus retiformis (Sanders & Smith, 1951) | BufonidaeChordata | Accepted speciesRecorded extant |
| Southern ToadAnaxyrus terrestris (Bonnaterre, 1789) | BufonidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Bufo microscaphus mexicanus Brocchi, 1879 Brocchi, 1879 | synonym |
| Bufo mexicanus Brocchi, 1879 Brocchi, 1879 | synonym |
| Bufo lentiginosus mexicanus Brocchi, 1879 Brocchi, 1879 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=773524 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:66LVC. Classification follows source parent identifiers. English common names may vary by region.