Adelopoma occidentale is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Diplommatinidae.

[1] (Original description) The sinistral shell is elongately turreted and scarcely sinuate.

Its sculpture has a somewhat distant well marked costulation The colour is white.

The columellar margin is weak, no tooth, the twist on columella seen within the aperture.

[2] This species is found in Trinidad and Tobago and Venezuela.