Tetrapleurodon

Tetrapleurodon is a genus of lampreys that are endemic to the Lerma–Chapala basin in west–central Mexico. Both species are threatened.^[1]

Tetrapleurodon
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Infraphylum:	Agnatha
Superclass:	Cyclostomi
Class:	Petromyzontida
Order:	Petromyzontiformes
Family:	Petromyzontidae
Genus:	Tetrapleurodon (Creaser & Hubbs 1922)
Type species
Tetrapleurodon spadiceus (Bean 1887)
Synonyms
Entosphenus (Tetrapleurodon) Creaser & Hubbs 1922

Species

There are two recognized species in this genus according to FishBase.^[2] They are sometimes included in the genus Lampetra instead.^[1]

• Tetrapleurodon geminis Álvarez, 1964 (Mexican brook lamprey)
• Tetrapleurodon spadiceus (T. H. Bean, 1887) (Mexican lamprey)