Abstract
The present article is based on the pyramidellid molluscs of the Pliocene Byôritu beds of Taiwan. The descriptions of the species include the specimens which were newly selected from the shell-sands derived from various localities of the said beds, in addition to those which were treated by the writer in his previous work.
collection which was made by Mr. S. ANDÔ some ten years ago, is now deposited in the Institute of Geology and Palaeontology, Tôhoku Imperial University, Sendai. The present study was carried out by the courtesy of Prof. H. YABE, to whom the writer expresses his hearty thanks.
