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Show 184 MR. OLDFIELD THOMAS ON [Nov. 15, Attention having been again called to this island by the remarkable ornithological discoveries made there by Capt. Boyd Alexander, a special collecting-trip in the interests of the National Museum was rendered possible by the generosity of our President (the Duke of Bedford), of Mrs. Percy Sladen, and the Hon. Walter Rothschild. A free passage to the island and back was also given to the collector by Messrs. Elder, Dempster & Co., through the kind offices of Sir Alfred Jones. The collector, Mr. E. Seimund, started in November 1903, arrived in the island on December 4, and left again in April 1904, so that he had in all just over four months in which to collect. The series he obtained is exceedingly valuable for the reasons above mentioned, as he got good sets of nearly all the species described so long ago by our predecessors in mammalogical research ; and these cannot fail to be of constant service to all workers on the subject. Of novelties I have only had occasion to describe two-Scoto-nycteris bedfordi, a Fruit-Bat, and Galago demidoffi poensis, a local race of the little West-African Galago; but Mr. Seimund has found on the island several other mammals which had not previously been recorded from there. Our knowledge of the Mammals of Fernando Po rests chiefly on the following literature :- W a t e r h o u s e , G. R.-Descriptions of new Mammals from the Island of Fernando Po, based on specimens presented by George Knapp, Esq. P. Z. S. 1838, p. 57. Colobus, Cercopithecus, Genetta, Lutra, and Cephcdophus. W a t e r h o u s e , G. R.- Descriptions of new Mammals from Fernando Po, obtained by Mr. L. Fraser during the Niger Expedition. P. Z. S. 1842, p. 124. Anomalurus and Squirrels. A l l e n , W . , and Thomson, T . H. R.-Narrative of the Expedition to the River Niger. Appendix, vol. ii. pp. 472 et seqq. 1848. Most of the Mammals obtained on the Expedition were collected at Fernando Po by L. Fraser. B o c a g e , J. V. B a r b o z a d u .-Subsidios para a Fauna da Ilha de Fernao do Po : Mammiferos. Jorn. Sci. Lisboa, (2) iv. p. 1, 1895. 16 species (none new) collected by Mr. P. Newton. B o ca g e , J. V. B a r b o z a d u .-Faune des Quatre Isles du Golfe de Guinee : Mammif^res. Jorn. Sci. Lisboa, (2) vii. p. 25, 1903. Full list of species. Descriptions of isolated species have also been published by Gray, Bennett, Ogilby, A. Smith, and others. The second of Prof. Bocage's two papers gives a full list of the |