Brittle Bladderfern vs Caucasian Pygmy Shrew

Cystopteris tenuis compared with Sorex volnuchini

Key Differences

• Brittle Bladderfern is Not Evaluated while Caucasian Pygmy Shrew is Least Concern.

Taxonomic Classification

Rank	Brittle Bladderfern	Caucasian Pygmy Shrew
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Soricomorpha (Soricomorpha)
Family	Cystopteridaceae	Soricidae
Genus	Cystopteris	Sorex
Species	Cystopteris tenuis	Sorex volnuchini

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Caucasian Pygmy Shrew

LC — Least Concern

Physical Characteristics

Attribute	Brittle Bladderfern	Caucasian Pygmy Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Bladderfern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Canada and United States.

Caucasian Pygmy Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

Caucasian Pygmy Shrew

The Caucasian Pygmy Shrew (Sorex volnuchini) is a species in the genus Sorex. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.