Calliotropis infundibulum is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.

The first lies remote below the suture, and is sparsely ornamented by longitudinally produced, high and pointed, tubercles.

The colour of the shell is yellowish white, with a brilliant nacreous sheen shining through the thin superficial calcareous layer, which becomes more opaque in drying.

The suture is linear, but strongly defined by the contraction of the suprajacent whorl and the flat shoulder of the one below.

The columellar lip is slightly patulous, bending flatly over the umbilicus, and then advancing in a straight line to the point of the columella, where it is slightly angulated just where the beaded umbilical spiral ends.

The umbilicus is funnel-shaped, rather open, but a good deal contracted within, sharply scored with the lines of growth.