MolluscaBase name details
original description
Pilsbry, H. A. & Vanatta, E. G. (1909). Notes on <i>Polinices didyma</i>, with description of a new Australian species. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 60: 555-559, pl. 29., available online at https://www.biodiversitylibrary.org/page/6396353
page(s): 558-559, pl. 29, figs. 1-3 [details]
From editor or global species database