Alaginella vercoi

The length of the shell attains 5.5 mm, its diameter 3.5 mm.

(Original description) The shell is pyriform with broad shoulders, especially pronounced over the aperture, and features a prominent spire. It is pure white and shiny. The shell comprises five rounded whorls. The aperture is narrow, widening somewhat towards the squared anterior end. The outer lip is thick and nearly straight, bending well forward from the shoulder, and has about six denticles near the center of its length on the inner edge. The columella is somewhat excavated, bearing four folds: the first rises with a strong upward sweep from the base, while the others are less oblique, smaller, and more widely spaced as they ascend. ^[2]

This marine species is endemic to Australia and occurs off South Australia, Tasmania, Victoria and Western Australia. ^[3]

• Cossignani, T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. pp. 1–408.
• Wilson, B. (1994). Australian marine shells, Prosobranch, Gastropods (2 ed.). Kallaroo, Western Australia: Odyssey Publishing. pp. 1–370.
• Gabriel, C.J. (1962). "Additions to the marine molluscan fauna of south eastern Australia including descriptions of new genus Pillarginella, six new species and two subspecies". Memoirs of the National Museum of Victoria. 25: 177–210.
• Cotton, B.C. (1949). "Australian recent and Tertiary Mollusca. Family Marginellidae". Records of the South Australian Museum. 9: 197–224.