Pyrgospira aenone is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.

The axial sculpture consists of (on the body whorl fifteen) short prominent nearly vertical subrectangular ribs rounded above and confined to the peripheral region in front of which on the base of the body whorl are about twice as many thread-like ridges mostly continuous over the base to the beginning of the siphonal canal.

The spiral sculpture consists of three or four threads with wider interspaces overrunning and sometimes slightly nodulating the peripheral ribs.

In front of these on the base are about eight spiral threads conspicuously nodulous at the intersections with the minor ridges, and with much wider interspaces.

The aperture is rather narrow with a well marked anal sulcus close to the suture, and on the body a prominent subsutural callus.