Project 222: T. Huelsken, D. Tapken, T. Dahlmann, H. Waegele, C. Riginos, M. Hollmann. 2012. Systematics and phylogenetic species delimitation within Polinices s.l. (Caenogastropoda: Naticidae) based on molecular data and shell morphology. Organisms Diversity & Evolution. 12:349-375.