Blunt-headed Salamander vs Brown Widow

Ambystoma amblycephalum compared with Latrodectus geometricus

Key Differences

• Blunt-headed Salamander is Critically Endangered while Brown Widow is Not Evaluated.

Taxonomic Classification

Rank	Blunt-headed Salamander	Brown Widow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Amphibia (Amphibians)	Arachnida (Arachnids)
Order	Caudata (Caudata)	Araneae (Araneae)
Family	Ambystomatidae	Theridiidae
Genus	Ambystoma	Latrodectus
Species	Ambystoma amblycephalum	Latrodectus geometricus

Evolutionary Relationship

Blunt-headed Salamander and Brown Widow share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blunt-headed Salamander

CR — Critically Endangered

Brown Widow

NE — Not Evaluated

Physical Characteristics

Attribute	Blunt-headed Salamander	Brown Widow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blunt-headed Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Peru).

Blunt-headed Salamander

The Blunt-headed Salamander (Ambystoma amblycephalum) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo

Brown Widow

The Brown Widow (Latrodectus geometricus) is a species in the genus Latrodectus. Typically found in terrestrial habitats from forests to deserts. Its geographic range includes widely distributed across africa (south africa), asia (japan), europe (7 countries), north america (united states), and south america (colombia, ecuador, peru).