Highfin dogfish vs Merriam’s Pocket Mouse

Centroscyllium excelsum compared with Perognathus merriami

Key Differences

• Highfin dogfish is Near Threatened while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Highfin dogfish	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Etmopteridae	Heteromyidae
Genus	Centroscyllium	Perognathus
Species	Centroscyllium excelsum	Perognathus merriami

Evolutionary Relationship

Highfin dogfish and Merriam’s Pocket Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Highfin dogfish

NT — Near Threatened

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Highfin dogfish	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Highfin dogfish

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.