Blackhead worm vs Giant Otter

Aporrectodea longa compared with Pteronura brasiliensis

Key Differences

• Blackhead worm is Not Evaluated while Giant Otter is Endangered.

Taxonomic Classification

Rank	Blackhead worm	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Annelida (Segmented Worms)	Chordata (Chordates)
Class	Clitellata (Clitellata)	Mammalia (Mammals)
Order	Crassiclitellata (Crassiclitellata)	Carnivora (Carnivorans)
Family	Lumbricidae	Mustelidae (Weasels & Otters)
Genus	Aporrectodea	Pteronura
Species	Aporrectodea longa	Pteronura brasiliensis

Evolutionary Relationship

Blackhead worm and Giant Otter share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blackhead worm

NE — Not Evaluated

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Blackhead worm	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackhead worm

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Blackhead worm

The Blackhead worm (Aporrectodea longa) is a species in the genus Aporrectodea. Native to Europe and North America, inhabiting ecosystems characteristic of the region. Distributed across Belgium, Denmark, Norway, Sweden, and United States.