Brown eagle-ray vs Common Periwinkle

Aetomylaeus milvus compared with Littorina littorea

Key Differences

• Brown eagle-ray is Endangered while Common Periwinkle is Least Concern.

Taxonomic Classification

Rank	Brown eagle-ray	Common Periwinkle
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Elasmobranchii	Gastropoda (腹足綱)
Order	Myliobatiformes (トビエイ目)	Littorinimorpha (タマキビガイ下目)
Family	Myliobatidae	Littorinidae
Genus	Aetomylaeus	Littorina
Species	Aetomylaeus milvus	Littorina littorea

Evolutionary Relationship

Brown eagle-ray and Common Periwinkle share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Brown eagle-ray

EN — Endangered

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Brown eagle-ray	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown eagle-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.

Common Periwinkle

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Common Periwinkle

タマキビ（Littorina littorea）はIUCNレッドリストで軽度懸念（LC）に分類されている。分布域全体で広く生息し個体数は安定しており、早急な保全上の懸念はない。