Chalarm hang-daab vs Fen Roller

Alopias pelagicus compared with Ancylis paludana

Key Differences

• Chalarm hang-daab is Endangered while Fen Roller is Near Threatened.

Taxonomic Classification

Rank	Chalarm hang-daab	Fen Roller
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Arthropoda (สัตว์ขาปล้อง)
Class	Chondrichthyes (ปลากระดูกอ่อน)	Insecta (แมลง)
Order	Lamniformes (อันดับปลาฉลามขาว)	Lepidoptera (ผีเสื้อ)
Family	Alopiidae	Tortricidae
Genus	Alopias	Ancylis
Species	Alopias pelagicus	Ancylis paludana

Evolutionary Relationship

Chalarm hang-daab and Fen Roller share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Chalarm hang-daab

EN — Endangered

Fen Roller

NT — Near Threatened

Physical Characteristics

Attribute	Chalarm hang-daab	Fen Roller
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.

Fen Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden. 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.