(ofBittium acutangulum Yokoyama, 1924)Yokoyama M. (1924). Mollusca from the coral-bed of Awa. <em>Journal of the College of Science, Tokyo Imperial University.</em> 45(1): 1–82, 5 pls. page(s): 19 [details]
original description(ofBittium acutangulum Yokoyama, 1924)Yokoyama M. (1924). Mollusca from the coral-bed of Awa. <em>Journal of the College of Science, Tokyo Imperial University.</em> 45(1): 1–82, 5 pls. page(s): 19 [details]
Present Inaccurate Introduced: alien Containing type locality