Atractus francoiAtractus francoi, also known commonly as cobra-da-terra in Brazilian Portuguese, is a species of snake in the family Colubridae. The species is endemic to Brazil.EtymologyThe specific name, francoi, is in honor of Brazilian herpetologist Francisco Luís Franco.Geographic rangeA. francoi is found in the Brazilian states of Rio de Janeiro and São Paulo.HabitatThe preferred natural habitat of A. francoi is forest.DescriptionA. francoi may attain a snout-to-vent length of about. It has seven upper labials and seven lower labials. The dorsal scales are arranged in 17 rows throughout the length of the body. The tail is short in females and moderate in males.BehaviorA. francoi is both diurnal and nocturnal, and it is fossorial.DietA. francoi preys upon worms.ReproductionA. francoi is oviparous. Clutch size is at least six eggs.