Pacific smalltail shark vs Seidenhai

Carcharhinus cerdale compared with Carcharhinus falciformis

Key Differences

• Pacific smalltail shark is Critically Endangered while Seidenhai is Vulnerable.

Taxonomic Classification

Rank	Pacific smalltail shark	Seidenhai
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Chondrichthyes (Knorpelfische)	Chondrichthyes (Knorpelfische)
Order same	Carcharhiniformes (Grundhaie)	Carcharhiniformes (Grundhaie)
Family same	Carcharhinidae	Carcharhinidae
Genus same	Carcharhinus	Carcharhinus
Species	Carcharhinus cerdale	Carcharhinus falciformis

Evolutionary Relationship

Pacific smalltail shark and Seidenhai share a common ancestor at the Genus level: Carcharhinus.

Conservation Status

Pacific smalltail shark

CR — Critically Endangered

Seidenhai

VU — Vulnerable

Physical Characteristics

Attribute	Pacific smalltail shark	Seidenhai
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific smalltail shark

Habitat

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

Seidenhai

Habitat

Found across multiple habitat types including temperate coniferous forests, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Algeria, Taiwan, Tunisia, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.