Far Eastern Brook Lamprey vs Gray-bellied Rice Rat

Lethenteron reissneri compared with Nephelomys moerex

Key Differences

• Far Eastern Brook Lamprey is Least Concern while Gray-bellied Rice Rat is Extinct.

Taxonomic Classification

Rank	Far Eastern Brook Lamprey	Gray-bellied Rice Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Petromyzonti (Petromyzonti)	Mammalia (Mammals)
Order	Petromyzontiformes (lamprey)	Rodentia (Rodents)
Family	Petromyzontidae	Cricetidae
Genus	Lethenteron	Nephelomys
Species	Lethenteron reissneri	Nephelomys moerex

Evolutionary Relationship

Far Eastern Brook Lamprey and Gray-bellied Rice Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Far Eastern Brook Lamprey

LC — Least Concern

Gray-bellied Rice Rat

EX — Extinct

Physical Characteristics

Attribute	Far Eastern Brook Lamprey	Gray-bellied Rice Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Far Eastern Brook Lamprey

Gray-bellied Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.