Volume 25, 1892
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Art. XVI.—Contributions to the Molluscan Fauna of New Zealand.
[Read before the Philosophical Institute of Canterbury, 2nd November, 1892.]
I.—Molluscan Fauna of Riccarton Bush, Christchurch.
Fam. Phenacohelicidæ.
Gen. Thalassohelix, Pilsbry, 1892.
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Th. lambda, Pfeiffer.
Gen. Allodiscus, Pilsbry, 1892.
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A. tullius, Gray.
Gen. Therasia, Hutton, 1884.
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Th. valeria, Hutton.
Gen. Phenacohelix, Suter, 1892.
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Ph. iota, Pfeiffer, var.
Gen. Flammulina, Von Martens, 1873.
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F. zebra, Le Guillou.
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F. crebriflammis, Pfeiffer.
Gen. Laoma, Gray, 1849.
Sub-gen. Phrixgnathus, Hutton, 1883.
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Ph. regularis, Pfeiffer.
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Ph. haasti, Hutton.
Fam. Patulidæ.
Sub-fam. Charopinæ.
Gen. Endodonta, Albers, 1850.
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E. varicosa, Pfeiffer (= timandra, Hutton).
Gen. Charopa, Albers, 1860.
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Ch. pseudocoma, n. sp.
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Ch. bïanca, Hutton.
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Ch. anguiculus, Reeve.
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Ch. brouni, Suter.
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Ch. tau, Pfeiffer (= sylvia, Hutton).
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Ch. zeta, Pfeiffer.
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Ch. epsilon, Pfeiffer.
– 148 –

Fam. Janellidæ.
Gen. Janella, Gray, 1850.
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J. papillata, Hutton.
Fam. Hydrobiidæ.
Gen. Potamopyrgus, Stimpson, 1865.
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P. corolla, Gould.
Fam. Hydrocenidæ.
Gen. Hydrocena, Parreyss, 1847.
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H. purchasi, Pfeiffer.
