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Show CONTENTS (continued). Page June 3, 1884. The Secretary. Report on the Additions to the Society's Menagerie in May 1884. (Plate XXXIII.) 389 Mr. Albert A. C. le Souef, C.M.Z.S. Letter from, containing remarks upon the Hatching of two Cygnets from one egg of a Black-necked Swan 390 1. On some Points in the Structure of Hapalemur griseus. By F. B. BEDDARD, M.A., F.Z.S., Prosector to the Society 391 2. On some Hybrid Bovine Animals bred in the Society's Gardens. By A. D. BARTLETT, Superintendent. (Plates XXXIV. & XXXV.) 399 3. On the Unimportance of the Presence or Absence of the Hallux as a Generic Character in Mammalogy, as shown by the gradual Disappearance of this Digit within the limits of a single Genus. By G. E. DOBSON, M.A., F.R.S 403 4. List of Coleoptera of the Families Carabidse and Scarabaeidae collected by the late W . A. Forbes on the Lower Niger. By H. W . BATES, F.R.S :..... 404 5. Notes upon some Mammals recently discovered in Queensland. By C A R L LUMHOLTZ, M. A. of the University of Christiania 400 June 17, 1884. Mr. Henry Seebohm. Exhibition of, and remarks upon, some Skins of rare European and Asiatic Birds 409 Mr. Sclater. Exhibition of, and remarks upon, the deciduous knob of the Culmen of the Beak of the Rough-billed Pelican (Peiecanus trachyrhynchus) 410 Mr. Sclater. Remarks upon a very singular Habit of one of tbe Greater Vasa Parrots (Cora-copsis vasa) 410 1. On the Employment of the Remora by Native Fishermen on the East Coast of Africa. By FREDERIC H O L M W O O D , H.B.M. Consul Zanzibar 411 2. Further Notes on Whitehead's Nuthatch. By R. B O W D L E R SHARPE, F.L.S., F.Z.S., &c. Department of Zoology, British Museum. (Plate XXXVI.) 414 3. On a new Species of Salpornis from Eastern Equatorial Africa. By Dr. G. HARTLAUB, F.M.Z.S. (Plate XXXVII.) ....". 415 4. Note on the Names of two Genera of Belphinidcs. By WILLIAM H E N R Y FLOWER, LL.D., F.R.S., P.Z.S 417 5. Description of a new Variety of Lacerta viridis, from South Portugal. By G. A. BOULENGER, F.Z.S. (Plate XXXVIII.) '. 418 6. Amphibiorum Italian enumeratio systematica. Auctore doct. LAURENTIO CAMERANO 421 7. Eemarks on a Paper by Dr. A. B. Meyer on a Collection of Birds from the East-Indian Archipelago, with special reference to those described by bim from the Timor-Laut Group of Islands. By H. O. FORBES, F.Z.S., F.R.G.S 425 8. On some new aDd little-known Species of Butterflies of the Genus Teracolus. By Lt.-Col. C. SWINHOE, F.L.S., F.Z.S. (Plates X X X I X . & XL.) 434 9. On the Occurrence of Lumpenus lampitriformis off the East Coast of^Scotland. By FRANCIS BAY. (Plate XLI.) 445 10. On a Collection of Murida from Central Peru. By OLDFIELD THOMAS, F.Z.S., Natural- History Museum. (Plates XLII.-XLIV.) 447 11. On the Rhynchota collected by the late Mr. W . A. Forbes on the Lower Niger. By W . L. DISTANT 458 12. On the Development of the Individual and of the Species as Forms of Instinctive Action. By ST. G E O B G E MivAET, V.P.Z.S., Ph.D., M.D., F.R.S 462 |