Snout obtusely pointed. Rostral about ⅓ the length of the shielded part of the head, portion visible from above as long as its distance from the frontal. Nasals in contact with each other behind the rostral. Frontal longer than broad. Eye small, its diameter less than ½ the length of the ocular shield. Ventrals twice as wide as the contiguous scales. Tail round or slightly laterally compressed. Caudal dorsal scales smooth or with very faint keels. Terminal scute very small, with two points.