Etheridge, R., jr. 1881. A contribution to our knowledge of the Unionidæ of the Launceston Tertiary Basin. Papers and Proceedings of the Royal Society of Tasmania 1880: 18-23. Available electronically.
Etheridge, 1881. Pap. Proc. R. Soc. Tasm. 1880: 20, figs. 1-2 [unnumbered on plate].
Etheridge, 1881. Pap. Proc. R. Soc. Tasm. 1880: 22, figs. 3-4 [unnumbered on plate].