The tiny eyes are covered with translucent scales, rendering these snakes almost entirely blind. The eyes cannot form images, but are still capable of registering light intensity.Adults are small and thin, averaging between 6.35-16.5 cm (2½ to 6½ inches) in length. The head and tail-tip look much the same, with no narrowing of the neck. The rudimentary eyes appear only as a pair of small dots under the head scales. The tip of the tail ends with a tiny pointed spur. The head scales are small and resemble those on the body. There are 14 rows of dorsal scales along the entire body. The coloration of the adults varies from shiny silver gray to charcoal gray or purple. The venter is grayish to brown. Juveniles are colored much the same as the adults.
Their diet consists of the larvae, eggs, and pupae of ants and termites.
This species is parthenogenetic and all specimens collected so far have been female. They lay eggs or may bear live young. Up to eight offspring are produced: all female and all genetically identical.