A shell that is definitely not yet adult from the same station 104 [Agulhas Bank] resembles the West-Indian species T. colon Dall, because of the slim shape and the two rows of tubercles; the apex of T. colon is not known. The white shell has 10 flat whorls which slowly increase in size; the first [protoconch] whorl is big and initially smooth, then sculptured with two keels, which continue on the next two whorls to become two cords with tubercles; above the suture a further smooth cord is visible. The last whorl is on the underside flat and smooth, the siphonal canal is short, the aperture is small and quadrangular. Height 3.3 mm, diameter 0.8 mm.

Diagnosis
Holotype height 3.4 mm and teleoconch of seven whorls, but the holotype is clearly a subadult specimen. Shell slender, with flat whorls. Teleoconch whorls have two tubercled spiral cords; a fine suprasutural smooth cord is also present. Paucispiral large apex of three whorls: the first whorl is smooth, while the other two bear two strong spiral cords. Colour white, but the specimen is worn, therefore the colour cannot be reliably described. Base and peristome cannot be properly described on the basis of the type material.