The original description of Thiele was in german. Please click german flag. The Englisch description was by Kilburn, 1988:
Diagnosis: Shell claviform (b/l 0,39-0.40, a/1 0,33-0,42), apex moderately blunt: whorls gently convex, without trace of shoulder, feebly concave posteriorly, without any swelling at suture; fasciole weak or absent; siphonal canal relatively long; parietal nodule moderately small, not markedly compressed, anal sinus parallel-sided; dominant sculpture sharply incised, of suture-to-suture, reversed-sigmoid grooves, the intervening axial ribs which number 18-22 on penultimate whorl, being almost completely flat; on base of body whorl incised by 5-8 spiral sulci, forming rectangular nodules; body whorl without a varix; patterned by a diffuse median zone of pale orange-brown. Protoconch breadth 1,05-1,20 mm. Attains 11,8 mm.
Description: Shell claviform (b/1 0.39-0,40, a/l 0,33-0,42) with moderately blunt apex, rostrum relatively long, base slanting slightly to right, moderately truncate, slightly oblique; teleoconch whorls 4,5, suture shallow, its lower border nicked by ends of axial grooves; whorls gently convex, not shouldered, periphery between mid-whorl and basal third, each whorl very slightly concave posteriorly, no trace of subsutural cord; left side of base of body whorl flattened to slightly concave, fasciole weak or absent, adult with slight false umbilicus next to columella callus. Aperture narrowly pyriform, greatest width more or less median, base of columella slightly convex, parietal region concave, siphonal canal moderately produced, broad, deep and slightly oblique, its termination not indented; labial callus fairly thick, its outer edge slightly free on columella, parietal nodule moderately small, continuous with labrum, slightly constricting opening of anal sinus; labrum fairly strongly convex in side-view, apparently without stromboid notch; anal sinus deep, symmetrically U-shaped, with parallel sides, its lower border not alate. Sculptured by flat, reversed-sigmoid axial ribs, visible only by the narrow, sharply incised grooves which separate them, base of body whorl with 5-8 slightly deeper spiral grooves; faint spiral micro-striae sometimes visible above periphery; growth-lines fine; body whorl without a varix. Axial 'ribs’ suture-to-suture, extending to tip of rostrum, although cut by basal grooves into small, rectangular nodules, opisthocline, strongly and arcuately recurved below suture; ribs fine and irregular on 1st whorl, penultimate whorl with 18-22 ribs. Colour moderate orange-yellow, usually concentrated into a median zone on a pale ground. Protoconch narrowly domed, of l,5-2 whorls, shape somewhat variable, evidently smooth, lip sharply defined, reversed-sigmoid; breadth 1,05-1,20 mm, height 1,00-1,25 mm (b/h 0,96-1,05). Dimensions: 10,3 x 4,0 mm, 10,8 x 4,2 mm; attains 11,8 mm (lip broken).
Operculum, radula and soft parts unknown.