Chalarm hang-daab vs Spinetail ray

Alopias pelagicus compared with Bathyraja spinicauda

Key Differences

• Chalarm hang-daab is Endangered while Spinetail ray is Near Threatened.

Taxonomic Classification

Rank	Chalarm hang-daab	Spinetail ray
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Chondrichthyes (ปลากระดูกอ่อน)	Elasmobranchii
Order	Lamniformes (อันดับปลาฉลามขาว)	Rajiformes (อันดับปลาโรนัน)
Family	Alopiidae	Arhynchobatidae
Genus	Alopias	Bathyraja
Species	Alopias pelagicus	Bathyraja spinicauda

Evolutionary Relationship

Chalarm hang-daab and Spinetail ray share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Chalarm hang-daab

EN — Endangered

Spinetail ray

NT — Near Threatened

Physical Characteristics

Attribute	Chalarm hang-daab	Spinetail ray
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.

Spinetail ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.