Otukaia chilena: Shell large, thin, nonumbilicate; whorls flat to slightly convex, early spire profile slightly concave; color silky white with a gray-green nacreous sheen. Protoconch smooth, rounded, teleoconch whorls nine, early whorls with three spiral cords and axial ribs that produce square cancellations; these cords fade altogether by the fifth whorl. The suture is laid just below the basal keel; base with fine and even spiral cords, more prominent near the columella. Columella thick, slanted, outer lip sharp, thin. Operculum corneous, multispiral. Dimensions: height 31.7 mm, diameter 26.5 mm; height 32.7 mm, diameter 29.9 mm; height 36.1 mm, diameter 31.9 mm (holotype).
Animal; cephalic lappets lacking, left and right neck lobes broad, rolled to form incurrent and excurrent siphons; epipodial tentacles four pairs, two in line with the neck lobes and two adjacent to the operculum; cephalic tentacles broad at the base, eye peduncles short, eyes large.Radula: the rachidian tooth is more than twice as broad as any of the lateral teeth; there are at least six pairs of lateral teeth, and the serrate, overhanging cusps of the lateral teeth are exceptionally long.

Otukaia chilena: Calliostoma chilena was described originally from a single specimen. It is still known from rather few specimens. As Rehder noted, C. chilena most closely resembles C. platinum Dall, 1890, which ranges from British Columbia to southern California at depths of 150-700 m. Calliostoma platinum is broader and has convex rather than flat-sided whorls.

Otukaia chilena: TYPE MATERIAL AND TYPE LOCALITY. Holotype, USNM 701669, 17 km NW of Valparaiso, Chile, 200 m.
DISTRIBUTION, Off Cebaco Island, Gulf of Panama (LACM 10370) (7°32'N), to Punta Topocalma, Chile (34°7'S). Depth range: 200-750 m. The minimum depth in Panama and northern Peru is 560 m; in Chile, the depths range from 200 to 750 m.