Aphanitoma is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.

The outer lip is essentially linear, exhibiting minimal sinuosity.

In adult and intact specimens, it displays a barely perceptible emargination near the posterior suture.

The columella is nearly straight, showing two prominent folds that descend along its central portion.

The siphonal canal is notably short and exhibits a sinistral curvature.