Atlantic Spotted Dolphin vs Smooth hound

Stenella frontalis compared with Triakis maculata

Key Differences

• Atlantic Spotted Dolphin is Data Deficient while Smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Atlantic Spotted Dolphin	Smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Cetacea (Whales & Dolphins)	Carcharhiniformes (Ground Sharks)
Family	Delphinidae (Oceanic Dolphins)	Triakidae
Genus	Stenella	Triakis
Species	Stenella frontalis	Triakis maculata

Evolutionary Relationship

Atlantic Spotted Dolphin and Smooth hound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic Spotted Dolphin

DD — Data Deficient

Smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Atlantic Spotted Dolphin	Smooth hound
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Spotted Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Norway, Portugal, and Venezuela.

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.

Atlantic Spotted Dolphin

The Atlantic Spotted Dolphin (Stenella frontalis) is a species in the genus Stenella. Its conservation status is listed as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.