Shiro-shumokuzame vs Dusky Dolphin

Sphyrna zygaena compared with Lagenorhynchus obscurus

Key Differences

• Shiro-shumokuzame is Not Evaluated while Dusky Dolphin is Least Concern.

Taxonomic Classification

Rank	Shiro-shumokuzame	Dusky Dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Chondrichthyes (軟骨魚綱)	Mammalia (哺乳類)
Order	Carcharhiniformes (メジロザメ目)	Cetacea (Whales & Dolphins)
Family	Sphyrnidae (Hammerhead Sharks)	Delphinidae (Oceanic Dolphins)
Genus	Sphyrna (Hammerhead Sharks)	Lagenorhynchus
Species	Sphyrna zygaena	Lagenorhynchus obscurus

Evolutionary Relationship

Shiro-shumokuzame and Dusky Dolphin share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Shiro-shumokuzame

NE — Not Evaluated

Dusky Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Shiro-shumokuzame	Dusky Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Shiro-shumokuzame

Habitat

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

Range

Distributed across Chile, Denmark, Portugal, Sweden, and Taiwan.

Dusky Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Shiro-shumokuzame

The common hammerhead, <em>Sphyrna zygaena</em>, is a cartilaginous fish belonging to the order Carcharhiniformes, family Sphyrnidae. This species is typically found in marine environments and has a distribution that includes the waters of Chile, Denmark, Portugal, Sweden, and Taiwan, reflecting a wide range across both Atlantic and Pacific Ocean systems. As a hammerhead shark, <em>Sphyrna zygaena</em> possesses the characteristic cephalofoil, the laterally expanded head structure that provides enhanced sensory capabilities and hydrodynamic benefits. Hammerhead sharks are generally known to be active, wide-ranging predators within marine ecosystems. No dietary information has been provided for this specific species in current records. Biological traits of this species remain poorly documented in the scientific literature.