Holotype - Specimen MB.C.18650, illustrated in By Korn, Ebbighausen & Bockwinkel in Fig. 19

Diagnosis (Korn et al., 2010): "extremely discoidal, evolute conch at 15 mm dm; whorl cross section subquadrate; venter slightly flattened; aperture moderately high. Steinkern smooth. Suture line with pouched external lobe, broad and tongue-shaped adventive lobe with subparallel flanks, and a pouched lateral lobe."