Black ghost shark vs Polynesian rat

Hydrolagus homonycteris compared with Rattus exulans

Taxonomic Classification

Rank	Black ghost shark	Polynesian rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Holocephali (Holocephali)	Mammalia (Mammals)
Order	Chimaeriformes (Chimaeriformes)	Rodentia (Rodents)
Family	Chimaeridae	Muridae (Mice & Rats)
Genus	Hydrolagus	Rattus
Species	Hydrolagus homonycteris	Rattus exulans

Evolutionary Relationship

Black ghost shark and Polynesian rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black ghost shark

LC — Least Concern

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Black ghost shark	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black ghost shark

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Black ghost shark

The Black ghost shark (Hydrolagus homonycteris) is a species in the genus Hydrolagus. It is currently classified as Least Concern on the IUCN Red List.