Clymene-Delphin vs Harmless Serotine

Stenella clymene compared with Eptesicus innoxius

Key Differences

• Clymene-Delphin is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Clymene-Delphin	Harmless Serotine
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Cetacea (Whales & Dolphins)	Chiroptera (Fledertiere)
Family	Delphinidae (Oceanic Dolphins)	Vespertilionidae
Genus	Stenella	Eptesicus
Species	Stenella clymene	Eptesicus innoxius

Evolutionary Relationship

Clymene-Delphin and Harmless Serotine share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Clymene-Delphin

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Clymene-Delphin	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clymene-Delphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Norway and Venezuela.

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Clymene-Delphin

The Clymene dolphin, Stenella clymene, is a small cetacean endemic to the tropical and subtropical waters of the Atlantic Ocean, ranging from the Gulf of Mexico and Caribbean Sea south along both the western and eastern Atlantic margins to approximately 20 degrees south latitude. Often called the short-snouted spinner dolphin, it is the only known naturally occurring cetacean hybrid species, believed to have originated through hybridization between the spinner dolphin (S. longirostris) and the striped dolphin (S. coeruleoalba). Clymene dolphins are acrobatic and frequently perform spinning leaps similar to but less elaborate than their spinner relatives. They travel in schools typically ranging from 10 to several hundred individuals, sometimes associating with other dolphin species. The species inhabits deep offshore pelagic waters and is rarely observed close to coastlines. It feeds primarily on fish and cephalopods, foraging at night when mesopelagic prey move into shallower waters. Clymene dolphins measure approximately 1.7–2 meters in length and display a distinctive tripartite pattern of dark cape, lighter grey flanks, and white or pale yellow belly. The species is assessed as Least Concern by the IUCN due to its relatively wide range and no evidence of major population-level threats.