Contents Transactions I.—Zoology. Page. Art. I. Notes on the Skeleton and Baleen of a Fin-whale (Balænoptera musculus?) recently acquired by the Otago University Museum. By T. Jeffery Parker, B. Sc. Lond., Professor of Biology in the University of Otago 3–13 II. Note on an Aphidian Insect infesting Pine Trees, with Observations on the Name “Chermes” or “Kermes.” By W. M. Maskell, F.R.M.S. 13–19 III. On a Parasite of the Penguin. By W. M. Maskell 19–20 IV. Further Notes on Coccidæ in New Zealand. By W. M. Maskell 20–31 V. On the Spiders of New Zealand. By A. T. Urquhart 31–53 VI. The Fresh-water Shells of New Zealand belonging to the Family Limnæidæ. By Professor F. W. Hutton 54–58 VII. Description of a new Species of Paper Nautilus (Argonauta gracilis). By T. W. Kirk 58–59 VIII. Notice of the Occurrence of the Eastern Golden Plover (Charadrius fulvus, Gml.) near Wellington. By T. W. Kirk 59–60 IX. Notes on some New Zealand Birds, exhibiting curious Variations of Colour. By T. W. Kirk 60–62 X. Supplement to a Monograph of the New Zealand Geometrina. By E. Meyrick, B.A. 62–68 XI. Descriptions of New Zealand Micro-lepidoptera. By E. Meyrick 68–120 XII. Descriptions of New Zealand Micro-lepidoptera. By E. Meyrick 121–140 XIII. Descriptions of New Zealand Micro-lepidoptera. By E. Meyrick 141–149 XIV. Description of a small Lizard, a Species of Naultinus, supposed to be new to Science. By W. Colenso, F.L.S. 149–151 XV. A Description of some newly-discovered New Zealand Insects believed to be new to Science. By W. Colenso 151–160 XVI. Notes on New Zealand Fishes. By W. Arthur, C.E. 160–172 XVII. Notes on Moa Remains in the Mackenzie Country and other Localities. By Frederick R. Chapman 172–178 XVIII. Objections to the Introduction of Beasts of Prey to destroy the Rabbit. By H. B. Martin 179–182 XIX. A short Description of a few Experiments bearing on the Question of Spontaneous Generation. By Dr. J. Hudson 182–186 XX. Notes on New Zealand Ornithology. By A. Reischek; communicated by Dr. Hector 187–198 XXI. Description of a new Octopus. By James Park 198–199 XXII. The Plague of Rats in Nelson and Marlborough. By John Meeson, B.A. 199–207 XXIII. Notes on the Dolphins of the New Zealand Seas. By James Hector, C.M.G., M.D., F.R.S. 207–211