Blind Small-eared Shrew vs Common Periwinkle

Cryptotis niausa compared with Littorina littorea

Key Differences

• Blind Small-eared Shrew is Data Deficient while Common Periwinkle is Least Concern.

Taxonomic Classification

Rank	Blind Small-eared Shrew	Common Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Soricomorpha (Soricomorpha)	Littorinimorpha (Littorinimorpha)
Family	Soricidae	Littorinidae
Genus	Cryptotis	Littorina
Species	Cryptotis niausa	Littorina littorea

Evolutionary Relationship

Blind Small-eared Shrew and Common Periwinkle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blind Small-eared Shrew

DD — Data Deficient

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Blind Small-eared Shrew	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blind Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

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).

Blind Small-eared Shrew

The Blind Small-eared Shrew (Cryptotis niausa) is a species in the genus Cryptotis. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.