Atractus collaris (Collared Groundsnakes)
Atractus collaris Peracca, 1897
This species is distinguished from other species of Atractus by the following combination of characters: (1) scale rows 17; (2) loreal large; (3) maxillary teeth 5; (4) ventrals 163 in males and 175 in females; (5) dorsal pattern with six dark stripes and paired series of small dark spots (5).
