Futo-tsunozame vs Eastern longnose spurdog

Squalus mitsukurii compared with Squalus grahami

Key Differences

• Futo-tsunozame is Endangered while Eastern longnose spurdog is Near Threatened.

Taxonomic Classification

Rank	Futo-tsunozame	Eastern longnose spurdog
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Elasmobranchii	Elasmobranchii
Order same	Squaliformes (ツノザメ目)	Squaliformes (ツノザメ目)
Family same	Squalidae	Squalidae
Genus same	Squalus	Squalus
Species	Squalus mitsukurii	Squalus grahami

Evolutionary Relationship

Futo-tsunozame and Eastern longnose spurdog share a common ancestor at the Genus level: Squalus.

Conservation Status

Futo-tsunozame

EN — Endangered

Eastern longnose spurdog

NT — Near Threatened

Physical Characteristics

Attribute	Futo-tsunozame	Eastern longnose spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Futo-tsunozame

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Eastern longnose spurdog

Futo-tsunozame

The Blainvilles dogfish (Squalus mitsukurii) is a species in the genus Squalus. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.