About Nassarius pyrrhus (Menke, 1843)
The shell of Nassarius pyrrhus ranges in length from 14 mm to 22 mm. It has an ovate, conical shape with a short, pointed spire made up of seven or eight convex whorls. The upper portion of these whorls is noduled, and the entire outer surface of the whorls is covered in slightly undulated longitudinal folds. On the body whorl, these folds often partially disappear near the edge of the outer lip, and the base of this whorl has a few striae that cross the folds, creating granulations. The aperture is whitish, subrounded, and slightly narrower at its upper end. The thick outer lip is paired with a slightly prominent external varix, and the inner surface of the lip is marked with numerous fine striae. This species is endemic to Australia, and can be found off the coasts of New South Wales, South Australia, Tasmania, Victoria, and Western Australia.
