A. I. Troost, S. D. Rupert, A. Z. Cyrus, F. V. Paladino, B. F. Dattilo, and W. S. Peters, “What can we learn from confusing Olivella columellaris and O. semistriata (Olivellidae, Gastropoda), two key species in panamic sandy beach ecosystems?”, Biota Neotrop., vol. 12, no. 2, Jun. 2012.