Xenodon nattereri, also known commonly as Natterer's hognose snake and achatadeira in Brazilian Portuguese, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to eastern South America.
The specific name, nattereri, is in honor of Austrian naturalist Johann Natterer.
A small species of snake, Xenodon nattereri has an average snout-to-vent length (SVL) of only .
Xenodon nattereri is found in Argentina, Brazil, Paraguay, and Uruguay.
The preferred natural habitats of Xenodon nattereri are grassland and savanna.
Xenodon nattereri is diurnal, fossorial, and terrestrial.
Xenodon nattereri preys predominately upon lizards of the family Gymnophthalmidae and their eggs.
Xenodon nattereri is oviparous. Clutch size is two to ten eggs.