Holotype - MB.C.398, Opitz Coll. Museum für Naturkunde Berlin deposited in Museum für Naturkunde Berlin

2013. - DeBaets, Klug, Korn, Poschmann 2013, p. 44, pl. 7, figs. 1-3

Diagnosis (after De Baets et al., 2013):

"large conch (max dm = 175 mm), umbilicus very wide (uw/dm = 0.69-0.72).

Ornament with 30 to 60 coarse ribs per half-whorl (ARI10 = 1-8 or ARI20 = 2-14)