glandina

from The Century Dictionary.

• noun A genus of pulmonate mollusks or snails, typical of the family Glandinidæ, having an oblong or elongated shell with a truncated columella and a thin outer lip, and containing upward of a hundred species. G. truncata is a well-known species of the southern United States, of an ashy fawn-color tinged with pink; G. rosea is a Central American form.