Chihuahua Gray vs common earthworm

Aphonopelma pallidum compared with Lumbricus terrestris

Key Differences

• Chihuahua Gray is Least Concern while common earthworm is Not Evaluated.

Taxonomic Classification

Rank	Chihuahua Gray	common earthworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Annelida (Segmented Worms)
Class	Arachnida (Arachnids)	Clitellata (Clitellata)
Order	Araneae (Araneae)	Crassiclitellata (Crassiclitellata)
Family	Theraphosidae	Lumbricidae
Genus	Aphonopelma	Lumbricus
Species	Aphonopelma pallidum	Lumbricus terrestris

Evolutionary Relationship

Chihuahua Gray and common earthworm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chihuahua Gray

LC — Least Concern

common earthworm

NE — Not Evaluated

Physical Characteristics

Attribute	Chihuahua Gray	common earthworm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chihuahua Gray

Habitat

Typically found in terrestrial habitats from forests to deserts.

common earthworm

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries) and North America (United States).

Chihuahua Gray

The Chihuahua Gray (Aphonopelma pallidum) is a species in the genus Aphonopelma. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.

common earthworm

<em>Lumbricus terrestris</em>, the common earthworm, is one of the most ecologically significant invertebrates in temperate soils and is native to Europe, with introduced populations established across North America and other regions globally. The species is not evaluated by the IUCN Red List. <em>Lumbricus terrestris</em> belongs to the family Lumbricidae and is widely distributed across Belgium, Denmark, Germany, Norway, Sweden, the United Kingdom, the United States, and other countries in its introduced range. It typically inhabits moist, organic-rich soils in gardens, agricultural fields, woodlands, and grasslands, burrowing deep into the substrate and surfacing at night or after rainfall to feed on decomposing leaf litter and soil organic matter. As a detritivore and ecosystem engineer, the common earthworm dramatically improves soil structure, aeration, drainage, and fertility through its burrowing activity and the production of nutrient-rich castings. It is a critical food source for a wide range of predators including birds, mammals, amphibians, and invertebrates. Charles Darwin extensively studied <em>Lumbricus terrestris</em> and recognized its profound role in soil formation and ecosystem functioning in his 1881 publication on the subject. Biological traits of this species remain poorly documented in the scientific literature.