Kanno, S., O'hara, S., and Caagusan, N. L., 1982. Molluscan Fauna from the Tartaro Formation (Upper Miocene) of Central Luzon, Philippines. Geology and palaeontology of Southeast Asia, 24 (232 ): 51 -128 .
New Species-Group Names:
macneili Kanno, O'hara & Caagusan, 1982. p. 120. pl. XVIII. figs. 8a-c.