Irrawaddy dolphin vs Spotted Barbtail

Orcaella brevirostris compared with Premnoplex brunnescens

Key Differences

• Irrawaddy dolphin is Endangered while Spotted Barbtail is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Spotted Barbtail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Passeriformes (Songbirds)
Family	Delphinidae (Oceanic Dolphins)	Furnariidae
Genus	Orcaella	Premnoplex
Species	Orcaella brevirostris	Premnoplex brunnescens

Evolutionary Relationship

Irrawaddy dolphin and Spotted Barbtail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Spotted Barbtail

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Spotted Barbtail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Spotted Barbtail

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Spotted Barbtail

Spotted Barbtail (Premnoplex brunnescens) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.