Four-Lined Silverfish vs Giant Otter

Ctenolepisma lineata compared with Pteronura brasiliensis

Key Differences

• Four-Lined Silverfish is Not Evaluated while Giant Otter is Endangered.

Taxonomic Classification

Rank	Four-Lined Silverfish	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Zygentoma (Zygentoma)	Carnivora (Carnivorans)
Family	Lepismatidae	Mustelidae (Weasels & Otters)
Genus	Ctenolepisma	Pteronura
Species	Ctenolepisma lineata	Pteronura brasiliensis

Evolutionary Relationship

Four-Lined Silverfish and Giant Otter share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Four-Lined Silverfish

NE — Not Evaluated

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Four-Lined Silverfish	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Four-Lined Silverfish

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Norway, Portugal, 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.