Candidate cases of poecilogony in Neogastropoda: implications for the systematics of the genus Raphitoma Bellardi, 1847 - Russini, V.; Giannuzzi-Savelli, R.; Pusateri, F.; Prkic, J.; Fassio, G.; Modica, M. V.; Oliverio, M. (Invertebrate Systematics, 2020)