669 
DiPROTOBOif MiJJOB, Suxley. 
Diprotodon minor., Huxley, Quart. Journ, Geol. Soc., 1SG2, xviii., p._422, t. 21, ff. 4-6.* 
Nototherium, sp.,Owen, Extinct Mam. Australia, 1877, p. .Gil. 
Diprotodon minor, Etheridge fil.. Cat. Australian Foss., 1878, p. 181. 
„ „ De Vis, Pros. R. Soc. Queensland, 1888, v., Pt. 2, p. 38, PI., top figs. 
Obs. The fossils described by Prof. Huxley as representing a small species of 
Diprotodon appear to be regarded by Sir 11. Owen as a Notuflieriiun, if we may judge 
by the very brief remarks be makes in "his “ Extinct Matnm.als of Australia. Latterly 
Mr. DeYis has studied Diprotodon minor, and states that both of the species figured by 
Huxley “ were in 1887 identified by Sir K. Owen with ascertained species of his genus 
Nototherium; D. {australis?) was figured as W. Mitclielli, D. minor as JSf. victories:' 
I have failed to find any identification of this kind by Prof. On^en, who 
simply suggests to the reader a comparisou of Huxley’s D. minor with his Nototherium 
Mitchelli. The conclusions arrived at by Mr. De Vis are as follow's : “ The preniolars 
figured by Professor Huxley are unmistakably those of Diprotodon. The distinctness 
of the animal they represent from D. australis, affirmed with some reserve by Prof. 
Huxley, and practically without I’eserve by Sir it. Owen, is confirmed by fresh evidence. 
The differences between the three premnlars made known are reconcilable, the difficulty 
raised by them less than that of admitting three allied species in the same habitat. 
They represent one form, D, minor, which is a species, and not the female of D. australis. 
The genus therefore combines two species, D. australis, Ow., and D. minor, Hux. 
Log. and Horizon. Growrie, Darling Downs (id iF. /saac) — Fluviatile deposits. 
Genus— EUOWHNIA, De Vis, 1891. 
Owenia, De Vis, Proc. R. Soc. Queensland, 1887, iv., p. 100 (non. Presch, nec Kolli cker). 
Euowenict, De Vis, Proc, Linn. Soc. N. S. Wales, 1891, vi. (2), Pt. 2, p. IGO. 
Euowknia ghata, JDe Vis. 
Owenia grata, De Vis, Proc. R. Soc. Queensland. 1887, p. 100, t. 1-4 ; Ihid., 1888, v., Pt. 3, 2nd plate (lower 
figs)- 
Duowenia grata, De Vis, Proc. Linn. Soc, N. S. Wales, 1891, vi. (2), Pt. 2, p. 160 and 16.o. 
Obs. A new genus of Diprotodontidse, with the dental formula i. p.m. -j-, 
m. A full description will be found in the Author’s Paper “ On an Extinct, Mammal 
of a Genus apparently new.” Erom this the following general remarks arc extracted . 
“ The affinity of Owenia to the gravigrade Diprotoduns known by their cranial remains 
is plainly expressed by the structure of ils grinding teeth. Had these alone been left 
to us, it would have been difficult to avoid the error of referring them to a small species 
of Nototherium. The incisors, on the other hand, are so strongly differentiated, not 
only from those of Diprotodon, Nototherium, and Sthcnomeriis, but from those of the 
phytophagous marsupials generally, that, had these been our sole guides, we might have 
been led to speculate on the existence of a carnivore more destructive than Thylacoleo ; 
but its general relationship being evident, it is only necessary to ascertain to which of 
the older and better known genera it has the nearest alliance. The ab.'^enco of the 
dilated muzzle, flat face, elevated forehead, huge /.ygomata, and strongly inflected 
mandibular angle of Nototherium, shows that in its lending characters its affinity to 
that genus was anything but close. Erom Diprotodon it was not so far removed ; in the 
several features iii which it departs from Nototherium, it approaches -or rather departs 
* In his Paper on Diprotodon minor Mr. De Vis commits a strange hibliogiaphical error. He quotes 
as the original reference to this species the “Annals and Magazine of Natural History, vol. xviii., pp. 
422-427. It should be as above given. 
