Blacktail spurdog vs Graceful Laucha

Squalus melanurus compared with Calomys lepidus

Key Differences

• Blacktail spurdog is Data Deficient while Graceful Laucha is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Graceful Laucha
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Squalidae	Cricetidae
Genus	Squalus	Calomys
Species	Squalus melanurus	Calomys lepidus

Evolutionary Relationship

Blacktail spurdog and Graceful Laucha share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Graceful Laucha

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Graceful Laucha
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Graceful Laucha

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.