Darwin s Nesoryzomys vs St. James' shell

Nesoryzomys darwini compared with Pecten maximus

Key Differences

• Darwin s Nesoryzomys is Extinct while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Darwin s Nesoryzomys	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Rodentia (Rodents)	Pectinida (Pectinida)
Family	Cricetidae	Pectinidae
Genus	Nesoryzomys	Pecten
Species	Nesoryzomys darwini	Pecten maximus

Evolutionary Relationship

Darwin s Nesoryzomys and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Darwin s Nesoryzomys

EX — Extinct

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Darwin s Nesoryzomys	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Darwin s Nesoryzomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

St. James' shell

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (China), Europe (8 countries), and South America (Chile).

St. James' shell

St. James' shell (Pecten maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.