"A. crassicaudatus"@en . "Thickhead Ground Snake"@en . . "Chordata"@en . . . "Atractus crassicaudatus"@en . . "Dum\u00E9ril, Bibron & Dum\u00E9ril, 1854"@en . "LC"@en . . . . "The Thickhead Ground Snake (Atractus crassicaudatus) is a non-venomous colubrid snake species endemic to Colombia. There are no recognized subspecies."@en . . . . . . "Animalia"@en . "Atractus crassicaudatus"@en . "The Thickhead Ground Snake (Atractus crassicaudatus) is a non-venomous colubrid snake species endemic to Colombia. There are no recognized subspecies."@en . .