Bootlace worm vs Brown Rat

Lineus longissimus compared with Rattus norvegicus

Key Differences

• Bootlace worm is Not Evaluated while Brown Rat is Least Concern.

Taxonomic Classification

Rank	Bootlace worm	Brown Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Nemertea (Nemertea)	Chordata (Chordates)
Class	Pilidiophora (Pilidiophora)	Mammalia (Mammals)
Order	Heteronemertea (Heteronemertea)	Rodentia (Rodents)
Family	Lineidae	Muridae (Mice & Rats)
Genus	Lineus	Rattus
Species	Lineus longissimus	Rattus norvegicus

Evolutionary Relationship

Bootlace worm and Brown Rat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bootlace worm

NE — Not Evaluated

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Bootlace worm	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bootlace worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Bootlace worm

The Bootlace worm (Lineus longissimus) is a species in the genus Lineus. Native to Europe, inhabiting ecosystems characteristic of the region.

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden