Eastern Small-Footed Bat vs Miller’s Mastiff Bat

Myotis leibii compared with Molossus pretiosus

Key Differences

• Eastern Small-Footed Bat is Endangered while Miller’s Mastiff Bat is Least Concern.

Taxonomic Classification

Rank	Eastern Small-Footed Bat	Miller’s Mastiff Bat
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order same	Chiroptera (Fledertiere)	Chiroptera (Fledertiere)
Family	Vespertilionidae	Molossidae
Genus	Myotis	Molossus
Species	Myotis leibii	Molossus pretiosus

Evolutionary Relationship

Eastern Small-Footed Bat and Miller’s Mastiff Bat share a common ancestor at the Order level: Chiroptera. (Fledertiere)

Conservation Status

Eastern Small-Footed Bat

EN — Endangered

Miller’s Mastiff Bat

LC — Least Concern

Physical Characteristics

Attribute	Eastern Small-Footed Bat	Miller’s Mastiff Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eastern Small-Footed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Miller’s Mastiff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.