Far Eastern Brook Lamprey vs Merriam’s Pocket Mouse

Lethenteron reissneri compared with Perognathus merriami

Taxonomic Classification

Rank	Far Eastern Brook Lamprey	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Petromyzonti (Petromyzonti)	Mammalia (Mammals)
Order	Petromyzontiformes (lamprey)	Rodentia (Rodents)
Family	Petromyzontidae	Heteromyidae
Genus	Lethenteron	Perognathus
Species	Lethenteron reissneri	Perognathus merriami

Evolutionary Relationship

Far Eastern Brook Lamprey and Merriam’s Pocket Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Far Eastern Brook Lamprey

LC — Least Concern

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Far Eastern Brook Lamprey	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Far Eastern Brook Lamprey

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.