Shell small, solid, strongly sculptured, with two smooth nepiouic and six subsequent whorls; region of the canal and prominences on the ribs whitish, the rest of the shell yellowish brown with a dark reddish brown flauunule in the valley between each pair of ribs; sculpture essentially as figured, ribs seven or eight, the outer lip much thickened behind and thin at-the outer edge, lirate within; pillar and throat yellowish.
Length, 10; maximum diameter. 4 mm. Mayaguez Harbor, Porto Rico.
This very pretty little species has a general resemblance to several others, but when a close comparison was made seemed to be not identical with any recorded from the region or contained in the National Museum.