Pacific Spiny-rat vs thick-lipped risso snail

Proechimys decumanus compared with Rissoa membranacea

Key Differences

• Pacific Spiny-rat is Near Threatened while thick-lipped risso snail is Least Concern.

Taxonomic Classification

Rank	Pacific Spiny-rat	thick-lipped risso snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Rodentia (Rodents)	Littorinimorpha (Littorinimorpha)
Family	Echimyidae	Rissoidae
Genus	Proechimys	Rissoa
Species	Proechimys decumanus	Rissoa membranacea

Evolutionary Relationship

Pacific Spiny-rat and thick-lipped risso snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

thick-lipped risso snail

LC — Least Concern

Physical Characteristics

Attribute	Pacific Spiny-rat	thick-lipped risso snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

thick-lipped risso snail

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.