Pletholax

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Gekkota
Infraordo: Pygopodomorpha

Familia: Pygopodidae
Genus: Pletholax Species: Pletholax gracilis
Name

Pletholax
Vernacular names

Pletholax (Keeled Legless Lizard) is a legless lizard occurring in Western Australia.
Species

Two species are recognized as being valid.[1]

Pletholax gracilis (Cope, 1864) - slender slider
Pletholax edelensis (Storr, 1978) - Edel land slider

Nota bene: A binomial authority or a trinomial authority in parentheses indicates that the species or subspecies was originally described in a genus other than Pletholax.
References

"Pletholax". The Reptile Database. Retrieved May 9, 2020.

Further reading

Boulenger GA (1885). Catalogue of the Lizards in the British Museum (Natural History). Second Edition. Volume I. ... Pygopodidæ ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xii + 436 pp. + Plates I-XXXII. (Pletholax gracilis, new combination, p. 245).
Cope ED (1864). "On the Characters of the higher Groups of REPTILIA SQUAMATA—and especially of the DIPLOGLOSSA". Proc. Acad. Nat. Sci. Philadelphia 1864: 224–231. (Pletholax, new genus, p. 229; Pygopus gracilis, new species, p. 229).