Cerion dickersoni Richard, 1935
"Cerion dickersoni Richards, n. sp. (Plate 25, figure 25). Subcylindrical; first two whorls smooth; third whorl very finely striate; remaining whorls with rather prominent "wrinkles"; lip prominent; probably closely related to C. mumiola (Pfeiffer). Holotype, length, 23 mm.; greatest diameter, 12 mm.; whorls, 8 ½. Locality 9 (sand in sea cave near road to Ermita de Monserrat; elevation 350 feet). Carnegie Museum, Pittsburgh, Pennsylvania."