PROFESSOR OWEN ON THE FOSSIL MAMMALS OF AUSTRALIA. 
285 
Museum of the Royal College of Surgeons ; wrongly ascribed to Macropus 
Atlas in my ‘ Catalogue,’ 4to, 1845, p. 325.) 
Fig. 10. Inner side view of part of the left mandibular ramus and teeth of Macropus 
affinis, Ow. 
Fig. 11. Working-surface of the best-preserved molars (m i, m 2) of the same fossil. 
(This is the type specimen of the species, No. 1524, ‘ Fossil Mammalia,’ in the 
Museum of the Royal College of Surgeons: ‘ Catalogue,’ 4to, 1845, p. 328.) 
Fig. 12. Outside view of portion of right mandible, with last three molars, of an old 
(female ?) Macropus Titan. 
Fig. 13. Working-surface of the teeth of the same specimen. 
Fig. 14. Corresponding portion of lower jaw of Macropus rufus. (From the largest 
existing Kangaroo, obtained by John Gould, Esq., F.R.S., during his sojourn 
in Australia.) 
Fig. 15. Outside view of portion of left mandibular ramus and four molars of an im- 
mature Osphranter Gouldii, Ow. 
Fig. 16. Working-surface of the teeth of the same specimen. 
PLATE XXIV. 
Fig. 1. Outer side view of skull and upper teeth of a nearly mature Halmaturus uala- 
batus. 
Fig. 2. Inner side view of molar series of ditto. 
Fig. 3. Working-surface of molar series, and portion of bony palate, of ditto. 
Fig. 4. Outer side view of right maxillary bone and teeth of a full-grown Sthenurus 
Atlas. 
Fig. 4 a. Hind view of penultimate molar ( m 2) of ditto. 
Fig. 5. Inner side view of the same fossil. 
Fig. 6. Under view of ditto, with working-surface of teeth. 
Fig. 7. Outer side view of portion of mandibular ramus and teeth of a mature Sthenurus 
Atlas. 
Fig. 8. Inner side view of the same fossil. 
Fig. 9. Hinder surface of the crown of penultimate molar ( m 2) of ditto. 
Fig. 10. Outer side view of mandibular ramus and teeth of a nearly mature Halmaturus 
ualabatus. 
Fig. 11. Working-surface of molar series of ditto. 
Fig. 12. Inner side view of the same mandibular ramus and teeth. 
Fig. 13. Outer side view of a portion of the right mandibular ramus and tooth qf a 
young Protemnodon Mimas. 
Fig. 14. Inner side view of the same fossil, with the premolar ( p 3) exposed in its for- 
mative cavity. 
Fig. 15. Working-surface of the molar (m 1 ) of the same fossil. 
mdccclxxiv. 2 p 
