Drillia audax is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Description The length of the shell attains 9.25 mm, its diameter 2.5 mm.
A little whitish species of oblong fusiform shape and of bold contour. It is very distinct in both sculpture and painting of the spiral straw-coloured lirae surrounding the 7 whorls, which are not costulate. One spiral lira, acute and prominent, is especially noticeable at the base of each whorl, just above the sutures. The aperture is ovate-oblong with a distinctive wide sinus. The siphonal canal is wide and very short.Melvill & Standen (1903), Descriptions of 68 new gastropoda from the Red Sea, the Gulf of Oman and the Northern Arabian Sea; The Annals and magazine of natural history 7th ser. v. 12 (1903)
Distribution This species occurs in the demersal zone of the Gulf of Oman, found at a depth of 284 m.
References
M.M. Schepman, Full text of "Siboga expeditie" Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295