Bighead spurdog vs Mondolfi’s Four-eyed Opossum

Squalus bucephalus compared with Philander mondolfii

Key Differences

• Bighead spurdog is Data Deficient while Mondolfi’s Four-eyed Opossum is Least Concern.

Taxonomic Classification

Rank	Bighead spurdog	Mondolfi’s Four-eyed Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Didelphimorphia (Didelphimorphia)
Family	Squalidae	Didelphidae
Genus	Squalus	Philander
Species	Squalus bucephalus	Philander mondolfii

Evolutionary Relationship

Bighead spurdog and Mondolfi’s Four-eyed Opossum share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bighead spurdog

DD — Data Deficient

Mondolfi’s Four-eyed Opossum

LC — Least Concern

Physical Characteristics

Attribute	Bighead spurdog	Mondolfi’s Four-eyed Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bighead spurdog

Mondolfi’s Four-eyed Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

Bighead spurdog

The Bighead spurdog (Squalus bucephalus) is a species in the genus Squalus.