Hudson s Thomaomys vs St. James' shell

Thomasomys hudsoni compared with Pecten maximus

Key Differences

• Hudson s Thomaomys is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Hudson s Thomaomys	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	Thomasomys	Pecten
Species	Thomasomys hudsoni	Pecten maximus

Evolutionary Relationship

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

Conservation Status

Hudson s Thomaomys

VU — Vulnerable

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Hudson s Thomaomys	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hudson s Thomaomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

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.