BY C. W. DE VIS. 129 



Examj^Jes — six. 



The type maxilla with p."*, m. ^, m. -, m. -^ — -A portion of a left 

 maxilla with m. ■^, m.^ (provisional) — A mandible with all the 

 cheek-teeth and a portion of a second with p.*, m. ^ — A pair of 

 mandibles, one with all the cheek-teeth, the other lacking only 

 the premolar. 



The close similarity in form between the upper and lower 

 premolars strongly suggests their co-specific origin. The molars 

 accompanying them could not without them l^e dissociated from 

 those of the other great kangaroos. 



Synaptodox, de Yis. 

 Si/xajjtodon, de Vis, Proc. Roy. Soc. Queensland, Yol. v., p. 159. 

 Molars distant at base, in contact by faceted projections 

 (talons) fore and aft. 



Synaptodon .evorum, de Yis {I.e.). 



Dimensions of a molar 9-0 x 5-0; space between the teeth 

 nearly equal to the length of the fore lobe. 



BIBLIOGRAPHY. 



I. Philosophical Transactions of the Royal Society of London. 



II. Owen, Pv., Researches on the Fossil Remains of the Extinct 

 Mammals of Australia, 1877. 



Ill, Descriptive and Illustrated Catalogue of the Fossil 



Organic Remains of Mammalia and Aves contained in the 

 Museum of the Royal College of Surgeons of England, 1845. 



IV. Lydekker, R., Catalogue of ihe Fossil Mammalia in the British 

 Museum, Part 5, 1887. 

 V. Etheridge, R. , Junr. , Catalogue of Australian Fossils, 1878. 

 VI. Proceedings of the Geological Society of London. 



VII. Proceedings of the Zoological Society of London. 



I 



