Bat ray vs Big Finner

Aetomylaeus maculatus compared with Balaenoptera physalus

Taxonomic Classification

Rank	Bat ray	Big Finner
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Cetacea (Whales & Dolphins)
Family	Myliobatidae	Balaenopteridae (Rorquals)
Genus	Aetomylaeus	Balaenoptera (Rorquals)
Species	Aetomylaeus maculatus	Balaenoptera physalus

Evolutionary Relationship

Bat ray and Big Finner share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Bat ray

EN — Endangered

Big Finner

EN — Endangered

Physical Characteristics

Attribute	Bat ray	Big Finner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bat ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bat ray

The Bat ray (Aetomylaeus maculatus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Big Finner

Big Finner (Balaenoptera physalus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.