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Show 312 DE. ST. GEOEGE MIVAET ON THE SKELETON OF [Apr. 2, him six specimens from the Caucasus, all of which agreed inter se in the characters given, in which this species differs from the other two species of Pied Elycatchers. I have in m y own collection a fine adult male of M. semitorquata from Turkey, obtained many years ago by the late M r . Robson; and on examining the series in the British Museum, I find that the specimens from Eao on the Persian Gulf, Bushire, and Persia are referable to this species, and not to M. atricapilla nor to M. collaris. It w7ould therefore appear that M. atricapilla does not range further east than Turkey nor M. collaris than Asia Minor, being replaced east of those countries by Muscicapa semitorquata. In conclusion I may add that Dr. Radde has also sent m e several Long-tailed Titmice from Lenkoran and Tiflis, all of which are undoubtedly referable to Acredula caucasica and not to A. caudata. 5. The Skeleton oi Lorius fiavopalliatus compared with that of Psittacus erithacus.-Part I. B y S T . G E O E G E M I V A R T, F.R.S. [Received March 25, 1895.] In a former paper, read on March 5, 1895,1 described the hyoid bones of certain Parrots and, amongst them, compared those of Lorius fiavopedliatus with the same parts in Psittacus erithacus, having taken the latter as m y type and standard of comparison. The admirable works of Professor Alphonse Milne-Edwards on the Eossil Birds of France and on the Osteology of the Psittaci do not contain figures or descriptions of any species of Loriidce, and the same must be said of Bronn's ' Thierreich' and (with a quite insignificant exception) of Fiirbringer's magnificent publication in two folio volumes. Such being the case, I have thought it worth while to describe in some detail the axial skeleton of a species of that interesting family which may possibly represent a more or less primitive form of the whole Order. I have selected for description the skeleton of Lorius fiavopalliatus, the means so to do having been furnished m e by this Society through the courtesy of our Prosector, M r . F. Beddard, F.R.S. For the purpose of comparison with the skeleton of Lorius, I have again chosen that of the type of the order Psittaci, namely Psittacus erithacus; and I have to thank the late President of the Linnean Society, M r . Charles Stewart, Hunterian Professor, for the loan of a skeleton of that species, and also Mr. Beddard for a spirit-specimen, the bones of which have been prepared for m e by M r . Ockenden with his wonted skill. THE CSEVICAL VEETEBE^;. The atlas in L. fiavopalliatus (fig. 1) has its pseudocentrum distinctly and largely perforated towards the dorsal part of its articular |