Contents. Transactions. I.—Zoology. Pages Art. I. On the Classification and Mutual Relations of the Dinornithidœ. By Professor T. Jeffery Parker, F.R.S. 1–3 II. On the Presence of a Crest of Feathers in certain Species of Moa. By Professor T. Jeffery Parker 3–6 III. On New Species of Moas. By Captain F. W. Hutton, F.R.S. 6–13 IV. On Anomalopteryx antiqua. By Captain F. W. Hutton 14–16 V. The Moas and the Moa-hunters. By Monsieur A. de Quatrefages. Translated from the French by Laura Buller: communicated by Sir Walter L. Buller, K.C.M.G., F.R.S. 17–49 VI. Notes on Mus maorium, Hutton, with Exhibition of Specimen. By Sir Walter L. Buller 49–50 VII. Note on the Bats of New Zealand. By Sir Walter L. Buller 50–52 VIII. Note on the Flightless Rail of the Chatham Islands (Cabalus modestus). By Sir Walter L. Buller 52–53 IX. Notes on New Zealand Birds. By Sir Walter Buller 53–63 X. Further Notes on the Birds of New Zealand. By Sir Walter Buller 63–88 XI. On the Fissures and Caves at the Castle Rocks, Southland: with a Description of the Remains of the Existing and Extinct Birds found in them. By A. Hamilton 88–106 XII. Notes on Birds. By R. I. Kingsley 107–108 XIII. On the Occurrence of the Luth, or Leathery Turtle, on the Coasts of New Zealand. By T. F. Cheeseman, F.L.S. 108–110 XIV. On a Specimen of Sunfish captured at Poverty Bay. By Archdeacon W. L. Williams 110–111 XV. Further Notes on New Zealand Earthworms, with Observations on the known Aquatic Species. By W. W. Smith 111–146 XVI. Contributions to the Molluscan Fauna of New Zealand. By H. Suter: communicated by Professor Hutton 147–153 XVII. Notes on New Zealand Insects. By H. Suter: communicated by Professor Hutton 153–155 XVIII. An Enumeration of the Janellidœ. By C. Hedley, F.L.S., Assistant in Zoology, Australian Museum: communicated by Professor Hutton 156–162 XIX. Synonymical Notes on New Zealand Cicadidœ. By G. V. Hudson, F.E.S. 162–163