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The shell colour is pale whitish, with a broadly depressed spire. The protoconch is broadly enlarged and sculptured by fine spiral threads. The whorls of the teleoconch are narrow and increase regularly, suture of medium depth. The last whorl is broadened, non-descending, well rounded. The surface of the teleoconch is sculptured by fine widely spaced riblets. The spiral sculpture of the protoconch continues on the teleoconch whorls and becomes stronger, dissecting the riblets and giving them a fine granulated appearance. On the subsurface, the riblets become faint while the spiral sculpture increases in strength.
The umbilicus is of medium width and funnel-shaped to cylindriform.
Figure 1. Vitrea gostelii sp. n., D = 2.25 mm. – All figures scaled × 20, phot H. Baur, NMBE.
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Abstract | | | Remark and differential diagnosis. |