Common Periwinkle vs Neotropical otter

Littorina littorea compared with Lontra longicaudis

Key Differences

• Common Periwinkle is Least Concern while Neotropical otter is Data Deficient.

Taxonomic Classification

Rank	Common Periwinkle	Neotropical otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Carnivora (Carnivorans)
Family	Littorinidae	Mustelidae (Weasels & Otters)
Genus	Littorina	Lontra
Species	Littorina littorea	Lontra longicaudis

Evolutionary Relationship

Common Periwinkle and Neotropical otter share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Neotropical otter

DD — Data Deficient

Physical Characteristics

Attribute	Common Periwinkle	Neotropical otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Periwinkle

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Neotropical otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Common Periwinkle

Common Periwinkle (Littorina littorea) 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.