Northern Lamprey vs Southern Brook Lamprey

Ichthyomyzon unicuspis compared with Ichthyomyzon gagei

Taxonomic Classification

Rank	Northern Lamprey	Southern Brook Lamprey
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Petromyzonti (七鳃鳗纲)	Petromyzonti (七鳃鳗纲)
Order same	Petromyzontiformes (七鰓鰻目)	Petromyzontiformes (七鰓鰻目)
Family same	Petromyzontidae	Petromyzontidae
Genus same	Ichthyomyzon	Ichthyomyzon
Species	Ichthyomyzon unicuspis	Ichthyomyzon gagei

Evolutionary Relationship

Northern Lamprey and Southern Brook Lamprey share a common ancestor at the Genus level: Ichthyomyzon.

Conservation Status

Northern Lamprey

LC — Least Concern

Southern Brook Lamprey

LC — Least Concern

Physical Characteristics

Attribute	Northern Lamprey	Southern Brook Lamprey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Northern Lamprey

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States.

Southern Brook Lamprey