Miller’s Mastiff Bat vs St. James' shell

Molossus pretiosus compared with Pecten maximus

Taxonomic Classification

Rank	Miller’s Mastiff Bat	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Chiroptera (Bats)	Pectinida (Pectinida)
Family	Molossidae	Pectinidae
Genus	Molossus	Pecten
Species	Molossus pretiosus	Pecten maximus

Evolutionary Relationship

Miller’s Mastiff Bat and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Miller’s Mastiff Bat

LC — Least Concern

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Miller’s Mastiff Bat	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Miller’s Mastiff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

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.