Black-shouldered Opossum vs Halavi guitarfish

Caluromysiops irrupta compared with Glaucostegus halavi

Key Differences

• Black-shouldered Opossum is Least Concern while Halavi guitarfish is Critically Endangered.

Taxonomic Classification

Rank	Black-shouldered Opossum	Halavi guitarfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Didelphimorphia (Didelphimorphia)	Rhinopristiformes (Rhinopristiformes)
Family	Didelphidae	Glaucostegidae
Genus	Caluromysiops	Glaucostegus
Species	Caluromysiops irrupta	Glaucostegus halavi

Evolutionary Relationship

Black-shouldered Opossum and Halavi guitarfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-shouldered Opossum

LC — Least Concern

Halavi guitarfish

CR — Critically Endangered

Physical Characteristics

Attribute	Black-shouldered Opossum	Halavi guitarfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Halavi guitarfish

Habitat

Found across multiple habitat types including deserts and xeric shrublands, flooded grasslands and savannas, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Egypt. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.