498 PROFESSOR OWEN ON THE SPECIES OF PHASCOLOMTS. 



DESCEIPTI9N OF THE PLATES. 



PLATE LXIK. 



Fig. 1. Front view of atlas vertebra, PAasco^om^s Za^Z/rons. 



Fig. 2. Back view of atlas vertebra, Phascolomys latifrons. 



Fig. 3. Front view of atlas vertebra, Phascolomys platyrhhms. 



Fig. 4. Back view of atlas vertebra, P/iasco?o»(3^.s ^Za^_5/rAmMS. 



Fig. 5. Side view of second to sixth cervical vertebrae, Phascolomys latifrons. 



Fig. 6. Side view of seventh cervical and iirst three dorsal vertebrae of Phascolomys 



latifrons. 

 Fig. 7. Side view of left first rib of Phascolomys latifrons ; 7a', articular surface of 



' head ;' 7b', articular surface of ' tubercle,' of ditto, Phascolomys latifrons. 

 Fig. 8. Side view of left third rib ; 85', articular surface of tubercle, Phascolomys 



latifrons. 

 Fig. 9. Side view of right fifth rib ; 9', front view of distal end of ditto, Phascolomys 



latifrons. 

 Fig. 10. Side view of left last (free or dorsal) rib, Phascolomys latifrons. 

 Fig. 11. Front or outer view of sternum, Phascolmnys latifrons. 

 Fig. l\a. Side view of distal end, with parts of attached rib and xiphoid sterneber, 



Phascolomys latifrons. 

 Fig. 12. Under view of right clavicle, Phascolomys latifrons. 

 Fig. 13. Under view of right clavicle, Phascolomys platyrhimis. 



PLATE LXX. 



Fig. 1. Under or inner view of sacrum and anterior caudal vertebrae, Phascolomys 

 latifrons. 



Fig. 2. Articular surface for ilium on the first two sacral vertebrae, Phascolomys 

 latifrons. 



Fig. 3. Under or inner view of sacrum and anterior caudal vertebrae, Phascolomys 

 platyrhinus. 



Fig. 4. Articular surfiice for ilium on the first two sacral vertebrae, Phascolomys 

 platyrhinus. 



Fig. 5. Dorsal or anconal view of the bones of the right fore paw, Phascolomys lati- 

 frons. 



Fig. 6. Thenal view of phalanges and sesamoid of fourth digit, Phascolomys latifrons. 



Fig. 7. Side view of ungual phalanx of third digit, Phascolomys latifrons. 



Fig. 8. Dorsal or upper view of the boues of the right hind foot, PItascolomys lati- 

 frons. 



