Austral ray vs Big Free-tailed Bat

Bathyraja griseocauda compared with Nyctinomops macrotis

Key Differences

• Austral ray is Endangered while Big Free-tailed Bat is Least Concern.

Taxonomic Classification

Rank	Austral ray	Big Free-tailed Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Chiroptera (Bats)
Family	Arhynchobatidae	Molossidae
Genus	Bathyraja	Nyctinomops
Species	Bathyraja griseocauda	Nyctinomops macrotis

Evolutionary Relationship

Austral ray and Big Free-tailed Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Austral ray

EN — Endangered

Big Free-tailed Bat

LC — Least Concern

Physical Characteristics

Attribute	Austral ray	Big Free-tailed Bat
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.

Big Free-tailed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Big Free-tailed Bat

The Big Free-tailed Bat (Nyctinomops macrotis) is a species in the genus Nyctinomops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.