Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Agnatha
Superclassis: Cyclostomi
Classis: Petromyzonti
Ordo: Petromyzontiformes
Familia: Petromyzontidae
Subfamilia: Petromyzontinae
Genus: Tetrapleurodon
Species: T. gemini – T. spadiceus
Tetrapleurodon is a genus of lampreys that are endemic to the Lerma–Chapala basin in west–central Mexico. Both species are threatened.[1]
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)
References
Ceballos, G.; E.D. Pardo; L.M Estévez; H.E. Pérez, eds. (2016). Los peces dulceacuícolas de México en peligro de extinción. ISBN 978-607-16-4087-1.
Froese, Rainer and Pauly, Daniel, eds. (2012). Species of Tetrapleurodon in FishBase. April 2012 version.
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