216 DE. B. A. BENSLET ON THE EVOT.UTION 



Fig. 5. SarcophUiis vrsinus, Harr. Right m. 3. a, crown ; b, profile. (No. 42 b.) 



6. Smittthopsis crassicauda/a, Gould. Right w.l. (No. 4G. 8. 3. 37.J 



7. Dasyurus Gcoffroyi,Gou\c]. Right m.l. (No. 86. 1. 2G. 10.) 



8. Sarcophilus ursinus, Harr. Right m. 1. (No. 42 b.) 



9. My7-mecobiiisfasciatus,yV aterh. a, crown views of right m. 2, m. 3, w. 4; b, internal profile of 



in. 2, in. 3 ; c, external profile view of median and posterior premolars and fii-st three molars. 

 (No. 44. 1. 22. 21.) 



10. Thylacinus cynocephalus, Harr. Right m. 3. a, crown ; b, profile. (No. 93. 4. 13. 1 .) 



11. Thylacinus cynocephnltts, Harr, Right m. 1. (Drawn from No. 77. 2.6. 12 and a foetal 



specimen in the Index Collection.) 



12. Perameles Doreyana, Quoy & Gaim. Right m.Z. a, crown ; b, profile. (No. 95. 5. 8. 13.) 

 \Z. Perameles ohesula,^\\icw. Right w. 2. a, crown ; 6^ profile. (No. 87. 5. 18. 8.) 



14. Thylncomys leucvra, Thomas. a, right m. 2, crown; b, left m.2, external profile. (No. 



83. 10. 19. \7.) 



15. Chceropus castanotis. Gray. Left m. 3, external profile. (No. 48. 1. 27. 41.) 



16. Perameles Bougainvillei, Quoy & Gaim. Right m. 4 (for comparison with 17 6). (No. 



41. 1178.) 



17. Notoryctes typhlop.^, Stirl. Right m.2. a, crown; b, profile. (No. 97. 11. 3. 13.) 



18. Distachurus pennatus, Pet. m.2. (No. 91'. 2. 14. 1.) 



19. Trichositrus im/peciila, Ken: Right ot. 2. (No. 43. 8. 12. 40.) 



20. Disla'churus /jeimaius, Pet. Right in. 1. (No. 94. 2. 14. 1.) 



21. Phalanger orientulis, Pall. Right w.l. (No. 67. 4. 12. 90.) 



22. Pseuduchirus peregrinus, Bodd. Right m.2. a, crown; b, profile. (No. 55. 12. 24. 69.) 



23. Phascolarctus cinereus, Goldf. Right m.2. (No. 253 c.) 



24. Tarxipes rostratus, Gerv. k, Verr. Three of the vestigial cheek-teeth. (No. 1381 b.) 



25. Culoprymnus campestris, GovXA. Right w». 2. (No. 46. 4. 4. 43.) 



26. Dorcopsis luciuosa, D'Alb. Right m. 2. (No. 7Q. 10. 28. 3.) 



27. Lagorchesfes leporoides, Gould. Right ?«. 2. (No. 41. 1127.) 



28. Macropus giganteus, Zimm. Right jm. 3. a, crown ; h, profile. (No. 40. 2. 28. 1.) 



29. Macropus rufus, Desm. Right in. 3. (No. 56. 4. 7. 2.) 



30. Phascolomys Mitchelli, Owen. Riglit in. 2 and wi. 3. a, crown; b, profile (??j. 3). (No. 



87. 3. 1. 3.) 



31. Diprotodon australis, Owen. Left m.'i reversed. (No. M. 474.) 



32. Metachirus opossvm, Linn. Right m. 3. n, crown; b, profile. (No. 98. 9. 5. 9.) 



33. Caluromys sp. Right m. 1. (No. 95. 8. 17. 19.) 



[Note. — In figs. 6, 7, 8, 11, ^;a. should read jaa''. ; figs. 2 a, 9 a, 10 a, 13 a, he^. should read ///''.; 

 fig. 9 c, pm. 3 and pm. 2 should read pp. and mp.] 



Plate 7. 



Illustrating the modifications of the pes in the Australian Marsupialia. 



Note. — All the figures on tins Plate, with the exception of fig. 19, refer to the plantar suiface of the 

 right foot. All, with the exception of figs. 1 1 and 18, are drawn from spirit-specimens. 



Fig. 1. Peramys brevicaudata, Erxl. (No. 89. 10. 26. 14.) 



2. Phascogale flavipes, Waterh. (No. 86. 5. 15. 8.) 



3. Sminthopsis leucopus, Gray. (No. 86. 5. 15. 9.) 



