クリイロコガモ vs Common ray

Anas aucklandica compared with Telatrygon biasa

Key Differences

• クリイロコガモ is Near Threatened while Common ray is Vulnerable.

Taxonomic Classification

Rank	クリイロコガモ	Common ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Elasmobranchii
Order	Anseriformes (カモ目)	Myliobatiformes (トビエイ目)
Family	Anatidae	Dasyatidae
Genus	Anas	Telatrygon
Species	Anas aucklandica	Telatrygon biasa

Evolutionary Relationship

クリイロコガモ and Common ray share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

クリイロコガモ

NT — Near Threatened

Common ray

VU — Vulnerable

Physical Characteristics

Attribute	クリイロコガモ	Common ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

クリイロコガモ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Norway and United Kingdom. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common ray

クリイロコガモ

The Auckland Islands Teal (Anas aucklandica) is a species in the genus Anas. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.