Hohojirozame vs Shiro-shumokuzame

Carcharodon carcharias compared with Sphyrna zygaena

Key Differences

• Hohojirozame is Vulnerable while Shiro-shumokuzame is Not Evaluated.

Taxonomic Classification

Rank	Hohojirozame	Shiro-shumokuzame
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Chondrichthyes (軟骨魚綱)	Chondrichthyes (軟骨魚綱)
Order	Lamniformes (ネズミザメ目)	Carcharhiniformes (メジロザメ目)
Family	Lamnidae (Mackerel Sharks)	Sphyrnidae (Hammerhead Sharks)
Genus	Carcharodon (Great White Sharks)	Sphyrna (Hammerhead Sharks)
Species	Carcharodon carcharias	Sphyrna zygaena

Evolutionary Relationship

Hohojirozame and Shiro-shumokuzame share a common ancestor at the Class level: Chondrichthyes. (軟骨魚綱)

Conservation Status

Hohojirozame

VU — Vulnerable

Population: ~3.5K

Trend: Decreasing ↓

Shiro-shumokuzame

NE — Not Evaluated

Physical Characteristics

Attribute	Hohojirozame	Shiro-shumokuzame
Diet	Carnivore	—
Average Lifespan	70 years	—
Average Length	5.0 m	—
Average Weight	1.1 t	—

Habitat & Geographic Range

Hohojirozame

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate grasslands and steppes, among 9 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Chile, Norway, Portugal, and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Shiro-shumokuzame

Habitat

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

Range

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

Hohojirozame

地球上で最大の捕食性魚類であるホホジロザメは、全世界の主要な大洋の冷涼な沿岸・外洋域に生息し、体長6メートル、体重2,000キログラムに達することがあります。海洋哺乳類、大型魚類、海鳥を主な獲物として下方からの待ち伏せ攻撃を行う最上位捕食者です。その恐ろしい評判にもかかわらず、人間への非挑発的な攻撃は極めてまれです。フカヒレ採取、混獲、目的的漁獲によって個体数が減少しており、多くの地域で法的保護を受けているにもかかわらず危急（VU）に分類されています。

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.

Shared Countries

Both species can be found in 3 countries:

🇨🇱 Chile 🇵🇹 Portugal 🇹🇼 Taiwan