Abstract / Introduction / Summary:
Two pyramidellid mollusk spesies of the genusTiberia Jeffreys, 1884 were recorded, T. dunkeri (Dall & Bartsch, 1906) from Wakanoura, Wakayama and T. dentata (Yokoyama, 1920) from Iorigawa inlet, Miyazaki prefecture. They differ from each other by the number of inner tooth-like ribs, two or more than two, respectively. Living specimens of the two were photographed.
