BY C. W. DE VIS. 
129 
Examples — s ix. 
The type maxilla with p. 4 , m. 1 , m. 2 , m. 3 — A portion of a left 
maxilla with m. 3 , m. + (provisional) — A mandible with all the 
cheek-teeth and a portion of a second with p. 4 , m. 1 — 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 be dissociated from 
those of the other great kangaroos. 
Synaptodon, cle Vis. 
Synaptodon, de Vis, Proc. Ro} r . Soc. Queensland, Vol. v., p. 159. 
Molars distant at base, in contact by faceted projections 
{talons) fore and aft. 
Synaptodon -33V0RUM, de Vis (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, R., Researches on the Fossil Remains of the Extinct 
Mammals of Australia, 1877. 
III. 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, 18S7. 
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. 
