Humpback smooth hound vs Perija Small-eared Shrew

Mustelus whitneyi compared with Cryptotis perijensis

Key Differences

• Humpback smooth hound is Critically Endangered while Perija Small-eared Shrew is Data Deficient.

Taxonomic Classification

Rank	Humpback smooth hound	Perija 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 whitneyi	Cryptotis perijensis

Evolutionary Relationship

Humpback smooth hound and Perija Small-eared Shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Humpback smooth hound

CR — Critically Endangered

Perija Small-eared Shrew

DD — Data Deficient

Physical Characteristics

Attribute	Humpback smooth hound	Perija Small-eared Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Humpback smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Perija Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.