Blacktail spurdog vs Pacific white-sided dolphin

Squalus melanurus compared with Lagenorhynchus obliquidens

Key Differences

• Blacktail spurdog is Data Deficient while Pacific white-sided dolphin is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Pacific white-sided dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Cetacea (Whales & Dolphins)
Family	Squalidae	Delphinidae (Oceanic Dolphins)
Genus	Squalus	Lagenorhynchus
Species	Squalus melanurus	Lagenorhynchus obliquidens

Evolutionary Relationship

Blacktail spurdog and Pacific white-sided dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Pacific white-sided dolphin

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Pacific white-sided dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Pacific white-sided dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.