Arctic barrel-bubble vs Handley s Slender Opossum

Retusa obtusa compared with Marmosops handleyi

Key Differences

• Arctic barrel-bubble is Least Concern while Handley s Slender Opossum is Critically Endangered.

Taxonomic Classification

Rank	Arctic barrel-bubble	Handley s Slender Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Cephalaspidea (Cephalaspidea)	Didelphimorphia (Didelphimorphia)
Family	Retusidae	Didelphidae
Genus	Retusa	Marmosops
Species	Retusa obtusa	Marmosops handleyi

Evolutionary Relationship

Arctic barrel-bubble and Handley s Slender Opossum share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic barrel-bubble

LC — Least Concern

Handley s Slender Opossum

CR — Critically Endangered

Physical Characteristics

Attribute	Arctic barrel-bubble	Handley s Slender Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic barrel-bubble

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Handley s Slender Opossum

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and montane grasslands and shrublands, among 4 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

Arctic barrel-bubble

The Arctic barrel-bubble (Retusa obtusa) is a species in the genus Retusa. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.