Blacktail spurdog vs Javan Rusa

Squalus melanurus compared with Rusa timorensis

Key Differences

• Blacktail spurdog is Data Deficient while Javan Rusa is Vulnerable.

Taxonomic Classification

Rank	Blacktail spurdog	Javan Rusa
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Artiodactyla (Even-toed Ungulates)
Family	Squalidae	Cervidae (Deer)
Genus	Squalus	Rusa
Species	Squalus melanurus	Rusa timorensis

Evolutionary Relationship

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

Conservation Status

Blacktail spurdog

DD — Data Deficient

Javan Rusa

VU — Vulnerable

Physical Characteristics

Attribute	Blacktail spurdog	Javan Rusa
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Javan Rusa

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Afrotropic and Oceanian realms.

Range

Distributed across Mauritius, New Zealand, and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.