334 



1829. The right os innominatum, with its marsupial bone artificially attached, in 

 order to show the glenoid cavity at its base articulated to the condyle on the 

 os pubis. 



1830. The left os innoininatuni. 1831. The left marsupial bone. 

 1832. The right femur. 1833. The left femur. 



1834. The right tibia. 1835. The right fibula. 



1836. The left tibia. 1837. The left fibula. 



1838. The right tarsal and metatarsal bones. 



1839. The left tarsal and metatarsal bones. 1840. Phalangeal bones. 



1841. The skull of a Wombat (Phascolomys platyrhimts). 



It differs from the Phascolomys Vombatus in its superior size, in the greater relative breadth 

 of the nasal bones, and in the larger and deeper excavation above the tympanic bone. The 

 lower jaw and the molar teeth are wanting. 



From Australia. 



Presented by Dr. Hobson. 



1842. The skull of the same species of Wombat (Phascolomys platyrhinus). 



The teeth are remarkable for the unequal manner in which they have been worn. 



Presented by Dr. Hobson. 



1843. The skull of a Wombat (Phascolomys latifrons). 



This is a well-marked species, characterized by the great development of the postorbital 

 angles ; the great and sudden expansion of the anterior half of the frontal bones ; the supe- 

 rior breadth of the strip of the maxillary bone ascending in front of the malar and lacrymal 

 bones to join the nasal bones ; and the enormous depth of the supratympanic fossa. 



From South Australia. 



Presented by Governor Sir George Grey, C.B. 



