Watters G.T. (2009). A revision of miền tây Atlantic Ocean genera Anna, Antillophos, Bailya, Caducifer, Monostiolum, and Parviphos, with description of a new genus, Diantiphos, and notes on Engina and Hesperisternia (Gastropoda: Buccinidae: Pisaniinae) and Cumia (Colubrariidae). The Nautilus 123(4): 225-275
