Blacktail spurdog vs Cheng s Jird

Squalus melanurus compared with Meriones chengi

Key Differences

• Blacktail spurdog is Data Deficient while Cheng s Jird is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Cheng s Jird
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Squalidae	Muridae (Mice & Rats)
Genus	Squalus	Meriones
Species	Squalus melanurus	Meriones chengi

Evolutionary Relationship

Blacktail spurdog and Cheng s Jird share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Cheng s Jird

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Cheng s Jird
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Cheng s Jird

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.

Cheng s Jird

The Cheng s Jird (Meriones chengi) is a species in the genus Meriones. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.