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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.
  • Th. lambda, Pfeiffer.

Gen. Allodiscus, Pilsbry, 1892.
  • A. tullius, Gray.

Gen. Therasia, Hutton, 1884.
  • Th. valeria, Hutton.

Gen. Phenacohelix, Suter, 1892.
  • Ph. iota, Pfeiffer, var.

Gen. Flammulina, Von Martens, 1873.
  • F. zebra, Le Guillou.

  • F. crebriflammis, Pfeiffer.

Gen. Laoma, Gray, 1849.
Sub-gen. Phrixgnathus, Hutton, 1883.
  • Ph. regularis, Pfeiffer.

  • Ph. haasti, Hutton.

Fam. Patulidæ.

Sub-fam. Charopinæ.
Gen. Endodonta, Albers, 1850.
  • E. varicosa, Pfeiffer (= timandra, Hutton).

Gen. Charopa, Albers, 1860.
  • Ch. pseudocoma, n. sp.

  • Ch. bïanca, Hutton.

  • Ch. anguiculus, Reeve.

  • Ch. brouni, Suter.

  • Ch. tau, Pfeiffer (= sylvia, Hutton).

  • Ch. zeta, Pfeiffer.

  • Ch. epsilon, Pfeiffer.

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Fam. Janellidæ.
Gen. Janella, Gray, 1850.
  • J. papillata, Hutton.

Fam. Hydrobiidæ.
Gen. Potamopyrgus, Stimpson, 1865.
  • P. corolla, Gould.

Fam. Hydrocenidæ.
Gen. Hydrocena, Parreyss, 1847.
  • H. purchasi, Pfeiffer.