arrow worm vs Bridge Roller

Parasagitta elegans compared with Ancylis uncella

Key Differences

• arrow worm is Not Evaluated while Bridge Roller is Least Concern.

Taxonomic Classification

Rank	arrow worm	Bridge Roller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chaetognatha (arrow worms)	Arthropoda (Arthropods)
Class	Sagittoidea (Sagittoidea)	Insecta (Insects)
Order	Aphragmophora (Aphragmophora)	Lepidoptera (Butterflies & Moths)
Family	Sagittidae	Tortricidae
Genus	Parasagitta	Ancylis
Species	Parasagitta elegans	Ancylis uncella

Evolutionary Relationship

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

Conservation Status

arrow worm

NE — Not Evaluated

Bridge Roller

LC — Least Concern

Physical Characteristics

Attribute	arrow worm	Bridge Roller
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark and Norway.

Bridge Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

arrow worm

The Arrow worm, Parasagitta elegans, is a species. Native to Europe, inhabiting ecosystems characteristic of the region.

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.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇳🇴 Norway