Common ray vs Guadeloupean Big-eyed Bat

Telatrygon biasa compared with Chiroderma improvisum

Key Differences

• Common ray is Vulnerable while Guadeloupean Big-eyed Bat is Endangered.

Taxonomic Classification

Rank	Common ray	Guadeloupean Big-eyed Bat
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Mammalia (哺乳類)
Order	Myliobatiformes (トビエイ目)	Chiroptera (翼手目)
Family	Dasyatidae	Phyllostomidae
Genus	Telatrygon	Chiroderma
Species	Telatrygon biasa	Chiroderma improvisum

Evolutionary Relationship

Common ray and Guadeloupean Big-eyed Bat share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Common ray

VU — Vulnerable

Guadeloupean Big-eyed Bat

EN — Endangered

Physical Characteristics

Attribute	Common ray	Guadeloupean Big-eyed Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common ray

Guadeloupean Big-eyed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common ray

<em>Telatrygon biasa</em>, the common ray, is a cartilaginous fish in the family Dasyatidae, order Myliobatiformes, belonging to the broader class Chondrichthyes. The species is assessed as Vulnerable on the IUCN Red List, indicating elevated concern over population viability. Common rays are demersal elasmobranchs typically found in shallow coastal and inshore marine habitats, resting on sandy or muddy substrates. Like other dasyatid stingrays, <em>Telatrygon biasa</em> typically feeds on benthic invertebrates including crustaceans, mollusks, and worms, which it detects using electroreceptive ampullae of Lorenzini. It typically moves by undulating its broad pectoral disc, a hallmark locomotion style of stingrays. The vulnerable status of this species likely reflects pressures from bycatch in coastal fisheries and habitat degradation, which are common threats for inshore ray species across the Indo-Pacific region. Biological traits such as lifespan, precise body measurements, and detailed diet composition remain poorly documented for this taxon, and further field research is needed to characterize population structure and reproductive ecology. Conservation measures targeting bycatch reduction in artisanal and commercial fisheries would benefit this species.