Black Bent vs Aka ei

Agrostis gigantea compared with Hemitrygon akajei

Key Differences

• Black Bent is Least Concern while Aka ei is Near Threatened.

Taxonomic Classification

Rank	Black Bent	Aka ei
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Liliopsida (単子葉植物綱)	Elasmobranchii
Order	Poales (イネ目)	Myliobatiformes (トビエイ目)
Family	Poaceae (Grass Family)	Dasyatidae
Genus	Agrostis	Hemitrygon
Species	Agrostis gigantea	Hemitrygon akajei

Conservation Status

Black Bent

LC — Least Concern

Aka ei

NT — Near Threatened

Physical Characteristics

Attribute	Black Bent	Aka ei
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Bent

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (11 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (5 countries).

Aka ei

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Black Bent

The Black Bent (Agrostis gigantea) is a species in the genus Agrostis. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Aka ei

The Brown Stingray (Hemitrygon akajei) is a species in the genus Hemitrygon. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.