332 



the confluence of the two superior articular surfaces for the astragalus, 

 and the greater relative breadth of the external convex surface : the 

 anterior cuboidal and scaphoidal facets are broader in proportion to their 

 length, and the cuboidal one is defined below by a deep and narrow 

 groove not present in the large existing Kangaroo : in other respects the 

 characteristic peculiarities of the calcaneum of the Kangaroo are closely 

 kept. 



From the alluvial or newer tertiary deposits in the bed of the Conda- 

 mine River, west of Moreton Bay, Australia. 



Presented by Lieut-Col. Sir T. L. Mitchell, C.B. 



1532. A proximal phalanx of the longest toe of the hind-foot of a Kangaroo. 



From the alluvial or newer tertiary deposits in the bed of the Conda- 

 mine River, west of Moreton Bay, Australia. 



Presented by Lieut. -Col. Sir T. L. Mitchell, C.B. 



1533. A second phalanx of the longest toe of the hind- foot of a Kangaroo, 

 probably Macropas Atlas : its basal or proximal end is broader in pro- 

 portion to the length of the bone than in the large existing Kangaroos. 



From one of the bone-caves in Wellington Valley, Australia. 



Presented by Count Strzelecki. 



1534. The shaft of an ulna of apparently a young Kangaroo. 



From one of the bone-caves in Wellington Valley, Australia. 



Presented by Count Strzelecki. 



1535. A mutilated os calcis of a Kangaroo. 



From one of the bone-caves of Wellington Valley, Australia. 



Presented by Count Strzelecki. 



Genus Hypsiprymnus. 



1536. The alveolar process of the left superior maxillary bone of a young indi- 

 vidual of the Cave Potoroo {Hypsiprymnus spelaus, Owen), with the 

 deciduous premolar and three succeeding true molar teeth in situ : the 



