Atlantic Smooth Dogfish vs Blind Small-eared Shrew

Mustelus canis compared with Cryptotis niausa

Key Differences

• Atlantic Smooth Dogfish is Near Threatened while Blind Small-eared Shrew is Data Deficient.

Taxonomic Classification

Rank	Atlantic Smooth Dogfish	Blind Small-eared Shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Soricomorpha (Soricomorpha)
Family	Triakidae	Soricidae
Genus	Mustelus	Cryptotis
Species	Mustelus canis	Cryptotis niausa

Evolutionary Relationship

Atlantic Smooth Dogfish and Blind Small-eared Shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic Smooth Dogfish

NT — Near Threatened

Blind Small-eared Shrew

DD — Data Deficient

Physical Characteristics

Attribute	Atlantic Smooth Dogfish	Blind Small-eared Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Smooth Dogfish

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Blind Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Atlantic Smooth Dogfish

The Atlantic Smooth Dogfish (Mustelus canis) is a species in the genus Mustelus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.