original description
Pilsbry, H. A. (1901). New Japanese marine, land and fresh-water Mollusca. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 53: 385-408, pls 19-21., available online at https://www.biodiversitylibrary.org/page/10089416
page(s): 405 [details]
additional source
Pilsbry, H. A. (1902). Revision of Japanese Viviparidae, with notes on <i>Melania</i> and <i>Bithynia</i>. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 54 (1): 115–121., available online at https://www.biodiversitylibrary.org/page/24686053
page(s): 121 [details]
From editor or global species database
Type locality Japan, Hidachi [details]