VIII. On the fossil mammals of Australia.-Part X. family macropodidæ: mandibular dentition and parts of the skeleton of palorchestes; additional evidences of macropus titan, sthenurus, and procoptodon

Abstract 1. Introduction.—The evidences of these extinct Mammals which have been made known through the ‘Transactions’ of the Royal Society have stimulated the search and transmission of additional fossils, from which are selected for the present com­munication those tending to complete the restoration of the gigantic kind of Kangaroo indicated by the portion of skull described and figured in the volume for 1874, and others adding to the knowledge of the dental system and osteology of Sthenurus, Procoptodon, and Macropus Titan. To E. S. Hill, Esq., of Woollahra, Sydney, I am indebted, through his brother-in-law Sir Daniel Cooper, Bart., for the portions of mandible adding to the dental characters of Palorchestes; and to George Frederic Bennett, Esq., of Darling Downs, Queensland, I chiefly owe, through his father Dr. Bennett, F. L. S., of Sydney, the parts of the skeleton of the same extinct species about to be described, and the remaining subjects of the present paper.