Bigeye thresher vs Spineless Stream Toad

Alopias pelagicus compared with Bufo aspinius

Taxonomic Classification

Rank	Bigeye thresher	Spineless Stream Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Amphibia (Amphibians)
Order	Lamniformes (Mackerel Sharks)	Anura (Frogs & Toads)
Family	Alopiidae	Bufonidae
Genus	Alopias	Bufo
Species	Alopias pelagicus	Bufo aspinius

Evolutionary Relationship

Bigeye thresher and Spineless Stream Toad share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Spineless Stream Toad

EN — Endangered

Physical Characteristics

Attribute	Bigeye thresher	Spineless Stream Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

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.

Spineless Stream Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Bigeye thresher

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.