Agathotoma hilaira

(Original description) The small, elevated shell is translucent white.

The five subsequent whorls are reticulated, moderately rounded, and slightly shouldered.

On the base of the shell, the minor threads become more closely set and coarser.

The axial sculpture features fourteen or more low, thread-like ribs on the body whorl, which extend to the siphonal canal and are slightly sigmoid behind the shoulder.

The outer lip is varicose and smooth inside, though the spiral sculpture shining through the translucent shell gives the appearance of liration.