Bridge Roller vs Chalk Screw-moss

Ancylis uncella compared with Tortula vahliana

Key Differences

Bridge Roller is Least Concern while Chalk Screw-moss is Vulnerable.

Taxonomic Classification

Rank	Bridge Roller	Chalk Screw-moss
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Bryophyta
Class	Insecta (Insects)	Bryopsida (Bryopsida)
Order	Lepidoptera (Butterflies & Moths)	Pottiales (Pottiales)
Family	Tortricidae	Pottiaceae
Genus	Ancylis	Tortula
Species	Ancylis uncella	Tortula vahliana

Conservation Status

Bridge Roller

LC — Least Concern

Chalk Screw-moss

VU — Vulnerable

Physical Characteristics

Attribute	Bridge Roller	Chalk Screw-moss
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.

Chalk Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, and Portugal. Currently classified as Vulnerable 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.

Chalk Screw-moss

The Chalk Screw-moss (Tortula vahliana) is a species in the genus Tortula. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.