Watters 2009. A revision of the western Atlantic Ocean genera Anna, Antillophos, Bailya, Caducifer, Monostiolum, and Parviphos, with description of a new genus, Dianthiphos, and notes on Engina and Hesperisternia (Gastropoda: Buccinidae: Pisaniinae) and Cumia (Colubrariidae). Nautilus, 123(4), December 23 2009: 225-275