Fatspine spurdog vs Miller’s Mastiff Bat

Squalus crassispinus compared with Molossus pretiosus

Taxonomic Classification

Rank	Fatspine spurdog	Miller’s Mastiff Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Chiroptera (Bats)
Family	Squalidae	Molossidae
Genus	Squalus	Molossus
Species	Squalus crassispinus	Molossus pretiosus

Evolutionary Relationship

Fatspine spurdog and Miller’s Mastiff Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Fatspine spurdog

LC — Least Concern

Miller’s Mastiff Bat

LC — Least Concern

Physical Characteristics

Attribute	Fatspine spurdog	Miller’s Mastiff Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fatspine spurdog

Miller’s Mastiff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.