''Rhachisaurus'' is a genus of the

lizard Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia alt ...

family Gymnophthalmidae. The

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

, i.e. it has only one species, ''Rhachisaurus brachylepis''. It occurs in

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

.Rhachisaurus brachylepis
in the Reptile Database

References

Gymnophthalmidae Lizard genera Taxa named by Kátia Cristina Machado Pellegrino Taxa named by Miguel Trefaut Rodrigues Taxa named by Yatiyo Yonenaga-Yassuda Taxa named by Jack W. Sites Jr. {{Lizard-stub