 In color the snake is slate to blue, olive or tawny black above, with some or all scales black-edging.Below, salmon pink to purple yellowish, with black bars across the neck and ventrals speckled or edged with brown or black; young specimens sometimes have pink or yellow bars on the throat.The average length of adults is between 90 cm - 105 cm (3-3½ feet), but largest specimen actually measured was a male 154 cm (5 feet) long.