Non-parasitic Lamprey vs Short-headed Lamprey

Mordacia praecox compared with Mordacia mordax

Key Differences

• Non-parasitic Lamprey is Endangered while Short-headed Lamprey is Least Concern.

Taxonomic Classification

Rank	Non-parasitic Lamprey	Short-headed 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	Mordaciidae	Mordaciidae
Genus same	Mordacia	Mordacia
Species	Mordacia praecox	Mordacia mordax

Evolutionary Relationship

Non-parasitic Lamprey and Short-headed Lamprey share a common ancestor at the Genus level: Mordacia.

Conservation Status

Non-parasitic Lamprey

EN — Endangered

Short-headed Lamprey

LC — Least Concern

Physical Characteristics

Attribute	Non-parasitic Lamprey	Short-headed Lamprey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—