original description
Preston, H.B. (1916). Descriptions of new freshwater shells from Japan. The Annals and Magazine of Natural History, (8) 17 (98): 159-163, pl. 9. London. [1 February]., available online at https://www.biodiversitylibrary.org/page/15612325
page(s): 160, pl. 9, figs 6, 6a [details]
additional source
Jutting, W. S. S. van. (1946). Distribution of <i>Erinna</i> (<i>Omia</i>) <i>japonica</i> (Preston). <em>Journal of Conchology.</em> 22(8): 202.
page(s): 202 [details]
source of synonymy
Hubendick, B. (1951). Recent Lymnaeidae. Their variation, morphology, taxonomy, nomenclature and distribution. <em>Kungliga Svenska Vetenskapsakademiens Handlingar. Fjärde Serien.</em> 3(1): 1–223. [details]
From editor or global species database
Type locality Japan, Biwa Lake [details]