Amazon River Dolphin vs Black-edged Marble

Inia geoffrensis compared with Endothenia nigricostana

Key Differences

• Amazon River Dolphin is Data Deficient while Black-edged Marble is Near Threatened.

Taxonomic Classification

Rank	Amazon River Dolphin	Black-edged Marble
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Lepidoptera (Butterflies & Moths)
Family	Iniidae	Tortricidae
Genus	Inia	Endothenia
Species	Inia geoffrensis	Endothenia nigricostana

Evolutionary Relationship

Amazon River Dolphin and Black-edged Marble share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Black-edged Marble

NT — Near Threatened

Physical Characteristics

Attribute	Amazon River Dolphin	Black-edged Marble
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Black-edged Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Amazon River Dolphin

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.

Black-edged Marble

The Black-edged Marble (Endothenia nigricostana) is a species in the genus Endothenia. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats. Distributed across Belgium, Denmark, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.