Antiguraleus ula is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

(Original description) The small shell is fusiform, biconical, angulated, obsoletely ribbed and spirally striate.

The sculpture consists of about 18 axial, very oblique, rather obsolete riblets, parted by wider shallow furrows.

The spirals there are a great many remote fine threads, finer and closer on the shoulder than on the body whorl.

The shell contains 5+1⁄2½ whorls|, slowly increasing, with a long sloping shoulder and a sharp carinated angle, below which they are cylindrical, slightly contracted at the suture.