Pilsbry, H. A. & Vanatta, E. G. (1909). Notes on Polinices didyma, with description of a new Australian species. Proceedings of the Academy of Natural Sciences of Philadelphia. 60: 555-559, pl. 29.
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Pilsbry, H. A. & Vanatta, E. G.
1909
Notes on <i>Polinices didyma</i>, with description of a new Australian species
Proceedings of the Academy of Natural Sciences of Philadelphia