Tsubakuro ei vs Tentacled butterfly ray

Gymnura japonica compared with Gymnura tentaculata

Key Differences

• Tsubakuro ei is Vulnerable while Tentacled butterfly ray is Critically Endangered.

Taxonomic Classification

Rank	Tsubakuro ei	Tentacled butterfly ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Elasmobranchii	Elasmobranchii
Order same	Myliobatiformes (トビエイ目)	Myliobatiformes (トビエイ目)
Family same	Gymnuridae	Gymnuridae
Genus same	Gymnura	Gymnura
Species	Gymnura japonica	Gymnura tentaculata

Evolutionary Relationship

Tsubakuro ei and Tentacled butterfly ray share a common ancestor at the Genus level: Gymnura.

Conservation Status

Tsubakuro ei

VU — Vulnerable

Tentacled butterfly ray

CR — Critically Endangered

Physical Characteristics

Attribute	Tsubakuro ei	Tentacled butterfly ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Tsubakuro ei

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Tentacled butterfly ray