Black ghost shark vs Leatherback Sea Turtle

Hydrolagus homonycteris compared with Dermochelys coriacea

Key Differences

Black ghost shark is Least Concern while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	Black ghost shark	Leatherback Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Holocephali (Holocephali)	Reptilia (Reptiles)
Order	Chimaeriformes (Chimaeriformes)	Testudines (Turtles & Tortoises)
Family	Chimaeridae	Cheloniidae (Sea Turtles)
Genus	Hydrolagus	Chelonia (Green Sea Turtles)
Species	Hydrolagus homonycteris	Dermochelys coriacea

Evolutionary Relationship

Black ghost shark and Leatherback Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Black ghost shark

LC — Least Concern

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Black ghost shark	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

Black ghost shark

Leatherback Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black ghost shark

The Black ghost shark (Hydrolagus homonycteris) is a species in the genus Hydrolagus. It is currently classified as Least Concern on the IUCN Red List.