Pyrgulina is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks.
This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae.
The shell is marked with strong axial ribs which extend from the summit to the umbilical area The spiral markings consist of impressed lines.
The fine, incised spiral striations are subequally spaced and present at the intercostal spaces between the sutures and on the base of the whorls.
[3] Species within the genus Pyrgulina include:[2]