About Eurytrochus strangei (A.Adams, 1853)
The shell of Eurytrochus strangei reaches up to 10 mm in length and 8 mm in diameter. This small, rather thin, narrowly umbilicate shell has a globose-conical shape. It is lusterless and olive-colored, marked with scattered white dots, obliquely radiating brown patches below the sutures, and tiny brown dots on the spiral ribs. The acute spire is conical, with subcanaliculate sutures. The shell has five convex whorls, encircled by strong spiral ridges: 3 on the upper whorls and 4 on the body whorl, where the fourth ridge forms the periphery. The interstices between ridges are marked with spiral striae, and are radiately lamellose striate below the suture. The base of the shell has numerous concentric lirae, and the area surrounding the umbilicus is white with brown markings. The aperture is subquadrangular, iridescent, and grooved within. The straight columella is usually tinged green. The strong keels on the upper surface distinguish this species from closely related allied species. This marine species is endemic to Australia, where it occurs off the coasts of Queensland, New South Wales, and Victoria.
