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Show No. 30. ABSTRACT OF THE PROCEEDINGS OF THE ZOOLOGICAL SOCIETY OF LONDON.* April 10th, 1906. HERBERT DRUCE, Esq., F.L.S., Yice-President, in the Chair. Mr. F. E. BEDDARD, F.R.S., exhibited a partially dissected specimen of the Scincoid Lizard, Trachysaurus rugosus, to show the existence in that species of abdominal ribs. Mr. R. I. POCOCK, F.Z.S., exhibited the skull of a Horse showing pre-orbital pits. Mr. C. TATE REGAN, B.A., F.Z.S., read a paper dealing with the Freshwater Fishes of the Island of Trinidad, chiefly based on a collection made by Mr. Lechmere Guppy, Jun., and presented by him to the British Museum. The collection was accompanied by natural history notes and by a series of beautifully executed water-colour drawings. Forty species of Freshwater Fishes were now known from the island ; these were enumerated in the paper and four of them described as new to science. The SECRETARY read a communication from Prof. J. ARTHUR THOMSON and Mr. W . D. HENDERSON, which contained an account of the collection of Alcyonarians made by Mr. Cyril Crossland at Zanzibar in 1901-02. Specimens of sixty-five species or varieties were contained in the collection, of which twenty-seven were described as new. A paper from Dr. J. F. GEMMILL treated of Cyclopia in Osseous Fishes, as observed by him in several advanced Trout embryos. A detailed account of the anatomy of the specimens was given and a comparison made with Cyclopia in Mammals. The author's views were also put forward regarding the mode of origin of this condition in Fishes. * This Abstract is published by the Society at 3 Hanover Square, London. W., on the Tuesday following the date of Meeting to which it refers. It will be issued, free of extra charge, to all Fellows who subscribe to the Publications. along with the ' Proceedings'; but it may be obtained on the day of publication at the price of Sixpence, or, if desired, sent post-free for the sum of Sue Shillings ppr annum, payable in advance. |