Aosuji tobiei vs Commerson s Dolphin

Aetomylaeus nichofii compared with Cephalorhynchus commersonii

Key Differences

• Aosuji tobiei is Vulnerable while Commerson s Dolphin is Least Concern.

Taxonomic Classification

Rank	Aosuji tobiei	Commerson s Dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Mammalia (哺乳類)
Order	Myliobatiformes (トビエイ目)	Cetacea (Whales & Dolphins)
Family	Myliobatidae	Delphinidae (Oceanic Dolphins)
Genus	Aetomylaeus	Cephalorhynchus
Species	Aetomylaeus nichofii	Cephalorhynchus commersonii

Evolutionary Relationship

Aosuji tobiei and Commerson s Dolphin share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Aosuji tobiei

VU — Vulnerable

Commerson s Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Aosuji tobiei	Commerson s Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aosuji tobiei

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.

Commerson s Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Aosuji tobiei

The Banded eagle ray (Aetomylaeus nichofii) is a species in the genus Aetomylaeus. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Commerson s Dolphin

<em>Cephalorhynchus commersonii</em>, commonly known as Commerson's Dolphin, is a small cetacean in the family Delphinidae. This species is classified as Least Concern on the IUCN Red List and is notable for its striking black-and-white coloration, which makes it one of the most visually distinctive dolphin species. Commerson's Dolphins typically inhabit coastal and nearshore marine environments of the Southern Hemisphere, particularly around the Falkland Islands, the southern tip of South America, and a geographically isolated population near the Kerguelen Islands in the Indian Ocean. These dolphins are highly social animals, often observed in small groups engaging in acrobatic behaviors near the surface. They typically feed on fish, squid, and crustaceans, often hunting cooperatively in shallow waters and kelp beds. Their average lifespan is approximately 18 years, and they are known for their fast, energetic swimming. Commerson's Dolphins are sometimes caught as bycatch in fishing nets, posing a localized conservation concern despite their overall Least Concern status.