Sir P. G. Egerton's Catalogue of Fossil Fish. 487 ischiadic foramen oval, of moderate size. Cotyloid cavities placed near the centre of the pelvis ; os pubis not continued far downwards, with the extremity inclined upwards and inwards. Scapulars broad, widest near their extremities, which are pointed. The skeleton was too much injured to ienable me to make out the numbering of the vertebrae with certainty. Remarks. — In the anatomy of the soft parts, as far as I could make them out from a much damaged specimen, and in the skeleton, a great preponderance is shown in favour of the genus Merops being classed with the Kingfishers, which indeed might be expected from the external structure ; and in those points in w^hich it differs it appears to approach the Humming Birds, a group which I think must also be classed among the fissirostral or volitorial division of birds. The sternum, in having two posterior fissures on each side, agrees with the Kingfishers, but is altogether longer and has a deeper keel in proportion to its length, and the inferior edge of it is more rounded than in that family, in which par-ticulars it appears to approach the Humming Birds. The coracoids and humerus are proportionally shorter, al-though of nearly the same form as among the Alcedinidce : these portions of the skeleton are found remarkably short among the Humming Birds. In the structure of the pelvinal bones, the osfurcatum, and ribs, Merops agrees precisely with the typical Kingfishers. LII. — A Catalogue of Fossil Fish in the Collections ofthe'EiARi. OF Enniskillen, F.G.S., &c. and Sir Philip Grey Egerton, Bart., F.R.S., &c.* * This Catalogue has been printed for private distribution by Sir Philip Grey Egerton, to whose kindness we are indebted for permission to insert it.
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