By Maassen (2003)
"Shell sinistroid, white, slightly translucent. Whorls approximately 3 1/2 (tuba not included); apical whorls distinctly olique, moderately to distinctly elevated. The penultimate whorl widest, convex or somewhat angularm with the suture well impressed. Constriction distinct, quite abrupt. Tuba consisting of approximately 3/4 whorl, touching the body whorl over its entire length, approximately circular in section. Shell with wmooth top whorls, the next ones with rather wide, thin and sharp, distinct radial ribs, which are widely spaced on the penultimate whorl (5 ribs/0.5 mm). Ribs crossed by a fine , spiral striation. Umbilicus widely open (0.3 mm wide), deep, showing the previous whorls. Aperture tilted 45 degree with regard to the coiling axis, its upper margin clearly below the level of the apex, without apertural teeth. Peristome double. Outer peristome spreading beyond the inner one, but gradually narrowed towards the right side of the aperture, where it is absent; inner peristome somewhat spreading, distinctly protruding beyond the outer one and on the right side of the aperture free of the whorls. Dimensions:H. 1.0mm; B 1.6 mm (including tuba), B 1.0 mm without tuba."