Taiwan spurdog vs Western longnose spurdog

Squalus formosus compared with Squalus nasutus

Key Differences

• Taiwan spurdog is Endangered while Western longnose spurdog is Near Threatened.

Taxonomic Classification

Rank	Taiwan spurdog	Western longnose spurdog
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Elasmobranchii	Elasmobranchii
Order same	Squaliformes (อันดับปลาฉลามหลังหนาม)	Squaliformes (อันดับปลาฉลามหลังหนาม)
Family same	Squalidae	Squalidae
Genus same	Squalus	Squalus
Species	Squalus formosus	Squalus nasutus

Evolutionary Relationship

Taiwan spurdog and Western longnose spurdog share a common ancestor at the Genus level: Squalus.

Conservation Status

Taiwan spurdog

EN — Endangered

Western longnose spurdog

NT — Near Threatened

Physical Characteristics

Attribute	Taiwan spurdog	Western longnose spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Taiwan spurdog

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Western longnose spurdog