Shell small, with a diameter between 0.4 and 0.8 mm, planispiral, whitish with irregular narrow brown stripes, more evident at the periphery of the last half whorl of the shell.
Protoconch of 3/4 whorl, with very small tubercles. Teleoconch between 1 1/4 and 1 1/2 whorls, smooth but with very densely spaced growth striae. The growth of the spire is slow; all whorl coiled exactly in the same plane. The aperture is not circular because the last whorl produces a little protrusion into, and also is more prominent towards the left near the periphery and towards the right near the suture.
Etymology. It is named after the similarity with a zebra pattern.

Omalogyra zebrina is different from O. atomus because the latter species is brown, and its protoconch is smooth. O. disculus has a very different colour pattern while O. undosa differs in being uniformly white coloured and in having more evident axial prominences. O. fuscopardalis sp. n. has a different darker colour, with a little more marked tubercles on the protoconch and its whorls are not coiled in the same plane. The latter species lives simpatrically with O. zebrina sp. n. O. ornata (Dautzenberg, 1889) from the Azores has a grey colour with a similar pattern of axial lines but reaches 3 and 1/2 whorls and measures 1.3 mm, being much larger than O. zebrina .