Chalarm hang-daab vs Crested shark

Alopias pelagicus compared with Galeus arae

Key Differences

• Chalarm hang-daab is Endangered while Crested shark is Least Concern.

Taxonomic Classification

Rank	Chalarm hang-daab	Crested shark
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Chondrichthyes (ปลากระดูกอ่อน)	Chondrichthyes (ปลากระดูกอ่อน)
Order	Lamniformes (อันดับปลาฉลามขาว)	Carcharhiniformes (อันดับปลาฉลามครีบดำ)
Family	Alopiidae	Scyliorhinidae
Genus	Alopias	Galeus
Species	Alopias pelagicus	Galeus arae

Evolutionary Relationship

Chalarm hang-daab and Crested shark share a common ancestor at the Class level: Chondrichthyes. (ปลากระดูกอ่อน)

Conservation Status

Chalarm hang-daab

EN — Endangered

Crested shark

LC — Least Concern

Physical Characteristics

Attribute	Chalarm hang-daab	Crested shark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chalarm hang-daab

Habitat

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

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Crested shark

Habitat

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

Chalarm hang-daab

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.