van der Spoel, Bleeker and Kobayasi, 1993
Diagnosis: Shell hyaline, subtriangular in outline. Faint brown to pink hue over entire shell. Ventral side vaulted; 20-40 (usually 27) distinct comb-shaped ventral ribs. Dorsal side convex, with strong central rib and latero-dorsal ribs; lock ribs small, lock area, main tubercle and link large. Lunar and minor tubercles typical. Tiny second lock system present. Lateral lines slightly convex, flanks poorly developed. Sculpture of faint growth lines and faint transverse striation. Growth lines well-developed on dorsal side. Well-developed lateral spines slightly bent, sharply pointed and hooked. Gutter corners large. Caudal spine and caudal spine mark absent. Ventral lip relatively large with clear median depression. Slender dorsal lip with notch, constriction and gutter. Traces of lip flaps present; moderate lip bellies and well-developed lip shoulders. Hump absent. Protoconch II area projects moderately. Shell length 8.2 mm, width 6.8 mm.