Imperforate, pyramidal, elongated, pure white or covered with a very thin cuticle of an excessively pale buff tint; polished ; showing under a lens, fine growth striae and spiral incised lines. Spire high, apex obtuse; whorls 6, slightly convex, the last slightly descending in front. Aperture oblique, ovate; peristome thin, expanded; columella vertical, not arcuate or concave, slightly truncated at the base.
Alt. 39, diam. 22; oblique alt. of aperture 20 mill.
Tayabas, Luzon, Philippines.
This is a pure white shell having the periphery rounded as in H. cincinna, from which it differs in having the lip decidedly expanded. In the last character it is like H. subcarinata, but the constant epidermal subsutural band of that species is lacking in eburnea.