Xenopholis undulatus, Jensen's ground snake, is a species of snake in the family Colubridae.
Geographic range Xenopholis undulatus is found in Brazil and Paraguay.
References
Further reading Freiberg, Marcos (1982). Snakes of South America. Hong Kong: T.F.H. Publications. 189 pp. . (Xenopholis undulatus, p. 113). Jensen, Adolf Severin (1900). "Lagoa Santa Egnens Slanger. Et Bidrag til det indre Brasiliens Herpetologi. (With descriptions of three new species)". Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjøbenhavn 1899: 99–111. (Oxyrhopus undulatus, new species, pp. 106–107, Figure 2). (in Danish and English).