Eastern longnose spurdog vs Taiwan spurdog

Squalus grahami compared with Squalus formosus

Key Differences

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

Taxonomic Classification

Rank	Eastern longnose spurdog	Taiwan 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 grahami	Squalus formosus

Evolutionary Relationship

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

Conservation Status

Eastern longnose spurdog

NT — Near Threatened

Taiwan spurdog

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Eastern longnose spurdog

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.