MTTRID.E. 227 



JIHuji ImcclatuS, Gould 1 . 



Hal. Australia. The modern race of this species is confined to 

 Tasmania, while the Pleistocene race occurred on the mainland of 

 Australia. A similar distribution occurs in the case of Mastacomys 

 and Napalotis, as well as in Thylacinus. 



43895. Several fragments of the cranium and mandible ; from the 

 caves of the Wellington Valley, Australia. 

 Presented by the Trustees of tlie Australian Museum, 1867. 



Mus (?) sp. 

 Hab. Switzerland. 



42823. The greater part of the skeleton of a murine rodent, in 

 a much-crushed condition ; from the Upper Miocene of 

 CEningen, Switzerland. The condition of this specimen 

 seems to preclude its exact determination. 



Van Breda Collection. Purchased, 1871. 



42821. The skeleton of a murine rodent, in a much-crushed con- 

 dition ; from the Upper Miocene of CEningen. This spe- 

 cimen, in which only the impression of the bones remains 

 in many places, indicates an animal of about the size of 

 M. musculus, but is too damaged for specific deter- 

 mination. Van Breda Collection. Purchased, 1871. 



Genus MASTACOMYS, Thomas 2 . 



Distinguished from Mus by the excessive width of the molars, as 

 well as by certain differences in the pattern on their crowns. 



iftaStacomgS fuSntS, Thomas 3 . 

 Hab. Australia. 



42673. Fragments of the maxilla and mandible, and two specimens 

 of the tibia ; from the caves of the Wellington Yalley, 

 Australia. 

 Presented by the Trustees of the Australian Museum, 1867. 



Genus HAPALOTIS, Lichtenstein 4 . 

 The molars of this genus have the same structure as in Mus. 



^apalotte alfotpcS, Lichtenstein 5 . 

 43895. Two imperfect rami of the mandible, and three detached 



1 Proc. Zool. Soc. 1845, p. 77. 



2 Ann. Mag. Nat. Hist. ser. 5, vol. ix. p. 413 (1882). 3 Loc. cit. 

 1 Dar=t. neuer Saugetb. Tol. iv. pi. xxix. (1829). s Loc. cit. 



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