LECTURES ON PALJEONTOLOGY. 
351 
a femur, two feet five inches in length, remarkable for the 
great extent of the neck, several vertebrae, fragments of ribs 
and other bones, all agreeing in proportion with the skull, 
and belonging to the same species, and most probably to the 
same individual. 
This collection of bones, when brought to Sydney, was 
noticed by the Rev. Mr. Clarke and by Mr. Macleay, in let¬ 
ters in the Sydney Morning Herald, and plaster casts were 
taken of the chief specimens. The whole collection was pur¬ 
chased of Mr. Turner by a Mr. Boyd, who was about to 
return to England. This gentlemen is stated to have died 
on the voyage, and the ship in which the fossils had been 
embarked was said to have been wrecked, and its whole 
cargo supposed to have been engulfed. A series of the casts 
of the fossils taken at Sydney was transmitted by the autho¬ 
rities of the museum there to the trustees of the British 
Museum. About the time when these casts arrived, a sale 
of fossil remains took place at Stevens’s auction-rooms; 
these fossils were found to belong to large marsupial ani¬ 
mals, were purchased for the British Museum, and proved 
to be the originals from which the casts in the Sydney 
Museum had been taken. The auctioneer stated that they 
had been the property of a Mr. Boyd. They will form the 
subject of a memoir by Professor Owen. Besides the parts 
of the skeleton of the great Diprotodon , they included a 
lower jaw' of the same large extinct marsupial, which the 
Professor had previously determined under the name of 
Nototkerium Mitchelli , and this jaw’ showed that there were 
two incisive tusks and ten molar teeth, five on each side, in 
that genus. 
In January, 1858, Professor Ow r en received from Mr. 
George Bennett, F.R.S., of Sydney, sketches of a fossil 
cranium, which had been found in the same formation and 
locality in Darling Downs as the Diprotodon. This new skull 
was eighteen inches long and fifteen inches wide. It had 
three incisors and five molars on each side, and from its cor¬ 
respondence in size with the lower jaw of the Nototkerium, 
the Professor believed it to belong to that genus. A cast of 
the cranium has been sent from Sydney to the British 
Museum, and has served to show that a fragment of upper 
jaw 7 with molar teeth, in Mr. Turner’s collection, belonged 
to the same genus These teeth show precisely that struc¬ 
ture which Professor Owen had previously pointed out as 
distinguishing the teeth of the Nototkerium from those of 
the Diprotodon . The lower jaw of the Nototkerium Mitchelli 
in Mr. Turner’s series, now in the British Museum, belongs 
