Bridge Roller vs Taiwan spurdog

Ancylis uncella compared with Squalus formosus

Key Differences

• Bridge Roller is Least Concern while Taiwan spurdog is Endangered.

Taxonomic Classification

Rank	Bridge Roller	Taiwan spurdog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Elasmobranchii
Order	Lepidoptera (Butterflies & Moths)	Squaliformes (Squaliformes)
Family	Tortricidae	Squalidae
Genus	Ancylis	Squalus
Species	Ancylis uncella	Squalus formosus

Evolutionary Relationship

Bridge Roller and Taiwan spurdog share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bridge Roller

LC — Least Concern

Taiwan spurdog

EN — Endangered

Physical Characteristics

Attribute	Bridge Roller	Taiwan spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bridge Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Bridge Roller

The Bridge Roller (Ancylis uncella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.