Alycaeus (Alycaeus) pyramidalis W. H. Benson, 1856 (no subgenera are recognized) Alycaeus pyramidalis is a species of small land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Alycaeidae.

The upper spire shows low, irregular growth ridges.

The rest of the spire is relatively short, but much longer than typical in Stomacosmethis.

The surface is irregularly wrinkled, and possibly ribbed near the suture.

[2] This species occurs in Myanmar and Thailand.