Aesopus australis

(Original description) The shell is elongate and fusiform, moderately solid, and pale brown with a shining surface. It consists of 7½ whorls, with the two apical whorls being thin and papillose. The remaining whorls feature somewhat distant, flat longitudinal plications on the upper portion, crossed by fine impressed lines. The middle of the body whorl is smooth, with a few impressed lines near the base. The sutures are grooved. The aperture is narrowly ovate and dilated below. The outer lip is arcuate and slightly thickened within. The columella is somewhat flattened, covered with a smooth, white callus, and is abruptly truncate at the base.^[2]

This marine species is endemic to Australia and occurs off New South Wales, South Australia and Victoria.

• Verco, J.C. 1910. Notes on South Australian marine Mollusca with descriptions of new species. Part XIII. Transactions of the Royal Society of South Australia 34: 115–145
• Hedley, C. 1913. Studies of Australian Mollusca. Part XI. Proceedings of the Linnean Society of New South Wales 38: 258–339
• Iredale, T. & McMichael, D.F. 1962. A reference list of the marine Mollusca of New South Wales. Memoirs of the Australian Museum 11: 1–109
• Wilson, B. 1994. Australian marine shells. Prosobranch gastropods. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.