arrow worm vs Merriam’s Pocket Mouse

Parasagitta elegans compared with Perognathus merriami

Key Differences

• arrow worm is Not Evaluated while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	arrow worm	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chaetognatha (arrow worms)	Chordata (Chordates)
Class	Sagittoidea (Sagittoidea)	Mammalia (Mammals)
Order	Aphragmophora (Aphragmophora)	Rodentia (Rodents)
Family	Sagittidae	Heteromyidae
Genus	Parasagitta	Perognathus
Species	Parasagitta elegans	Perognathus merriami

Evolutionary Relationship

arrow worm and Merriam’s Pocket Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow worm

NE — Not Evaluated

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	arrow worm	Merriam’s Pocket Mouse
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.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

arrow worm

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