Cownose ray vs Harmless Serotine

Rhinoptera javanica compared with Eptesicus innoxius

Key Differences

• Cownose ray is Endangered while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Cownose ray	Harmless Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Chiroptera (Bats)
Family	Myliobatidae	Vespertilionidae
Genus	Rhinoptera	Eptesicus
Species	Rhinoptera javanica	Eptesicus innoxius

Evolutionary Relationship

Cownose ray and Harmless Serotine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cownose ray

EN — Endangered

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Cownose ray	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cownose 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.

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.