Austral ray vs Collembola

Bathyraja griseocauda compared with Folsomides angularis

Key Differences

• Austral ray is Endangered while Collembola is Not Evaluated.

Taxonomic Classification

Rank	Austral ray	Collembola
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Elasmobranchii	Collembola (springtail)
Order	Rajiformes (Rajiformes)	Entomobryomorpha (Entomobryomorpha)
Family	Arhynchobatidae	Isotomidae
Genus	Bathyraja	Folsomides
Species	Bathyraja griseocauda	Folsomides angularis

Evolutionary Relationship

Austral ray and Collembola share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Austral ray

EN — Endangered

Collembola

NE — Not Evaluated

Physical Characteristics

Attribute	Austral ray	Collembola
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Austral ray

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

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

Collembola

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States.

Austral ray

The Austral ray (Bathyraja griseocauda) is a species in the genus Bathyraja. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Collembola

<em>Folsomides angularis</em>, commonly referred to as Collembola in reference to its broader taxonomic order, is a springtail species belonging to the genus <em>Folsomides</em>. Springtails are among the most abundant hexapods in terrestrial ecosystems, playing important roles in soil decomposition and nutrient cycling. This species has been documented in Europe, with records from Denmark, Norway, and Sweden, as well as North America, where it is known from the United States. It typically inhabits soil, leaf litter, and decaying organic matter, and is capable of tolerating a range of environmental conditions. Springtails of this group are detritivores, feeding on decomposing plant material, fungal hyphae, and microorganisms, though specific dietary data for <em>Folsomides angularis</em> are not detailed in current records. The species has not been formally assessed for conservation status. Biological traits of this species remain poorly documented in the scientific literature. Its small body size and cryptic lifestyle make detailed ecological study challenging.