Volume 26, 1893
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Fam. Hydrobiidæ.
Genus II. Potamopyrgus, Stimpson, 1865.
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2. P. cumingiana, Fischer, sp. 1860 (salleana, Fischer, 1860; crossei, Frauenfeld, 1864).
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(I.), vol. xiv., p. 144, pl. 1, figs. A, 1. (II.), p. 83. North and South Islands.
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3. P. corolla, Gould, sp. 1848 (badia, Gould, 1851; fischeri, Dunker, 1862; reevei, Frauenfeld, 1862).
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(I.), vol. xiv., p. 145, pl. 1, figs. B, 1, 2. (II.), pp. 82, 83. North and South Islands.
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4. P. antipodarum, Gray, sp. 1843, em. (antipodum) (zelandiæ, Gray, 1843; egena, Gould, 1851; gracilis, Gould, 1852; spelæa, Frauenfeld, 1862).
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(I.), vol. xiv., p. 145, pl. 1, figs. C, 1. (II.), pp. 81, 82. North and South Islands.
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5. P. pupoides, Hutton, 1882.
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(I.), vol. xiv., p. 146, pl. 1, fig. D. North and South Islands.
