Amazonas-Delphin vs Commerson-Delfin

Inia geoffrensis compared with Cephalorhynchus commersonii

Key Differences

• Amazonas-Delphin is Data Deficient while Commerson-Delfin is Least Concern.

Taxonomic Classification

Rank	Amazonas-Delphin	Commerson-Delfin
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family	Iniidae	Delphinidae (Oceanic Dolphins)
Genus	Inia	Cephalorhynchus
Species	Inia geoffrensis	Cephalorhynchus commersonii

Evolutionary Relationship

Amazonas-Delphin and Commerson-Delfin share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Amazonas-Delphin

DD — Data Deficient

Commerson-Delfin

LC — Least Concern

Physical Characteristics

Attribute	Amazonas-Delphin	Commerson-Delfin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonas-Delphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Commerson-Delfin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Amazonas-Delphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.

Commerson-Delfin

<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.