Bat ray vs hydroid

Aetomylaeus maculatus compared with Obelia longissima

Key Differences

• Bat ray is Endangered while hydroid is Not Evaluated.

Taxonomic Classification

Rank	Bat ray	hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Elasmobranchii	Hydrozoa (Hydrozoa)
Order	Myliobatiformes (Myliobatiformes)	Leptothecata (Leptothecata)
Family	Myliobatidae	Campanulariidae
Genus	Aetomylaeus	Obelia
Species	Aetomylaeus maculatus	Obelia longissima

Evolutionary Relationship

Bat ray and hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bat ray

EN — Endangered

hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Bat ray	hydroid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bat 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.

hydroid

Habitat

Native to Europe and North America and Oceania, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina).

Bat ray

The Bat ray (Aetomylaeus maculatus) 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.