52 



LIST OF OSTEOLOGICAL SPECIMENS. 



Skull. North America. 

 Skull. North America. 



The Swiss. Tamias striatus. 



* Skull. Altai Mountains. From Mr. Brandt's collection. 



Spermophilus, F. Cuv. 



The Bed-cheeked Souslik. Spermophilus erythrogenys. 



* Skull. Siberia. 



The Souslik. Spermophilus con color. 



* Skull. Moldavia. 



* Skull. Moldavia. 



The Souslik. Spermophilus 



* Skull. Altai Mountains. 



Arctomys, Schreb. 



The Quebec Marmot or Weenusk. Arctomys Empetra. 



* Skull. Missouri, North America. 

 Skull. Presented by — Simeon, Esq. 

 Skull. Presented by Mr. Edward Gerrard. 



The Whistler. Arctomys pruinosus. 

 Skull, imperfect. Hudson's Bay. Presented by the Hudson's 

 Bay Company. 



The Shipi or Chupi. Arctomys Bobac. 

 An imperfect Skull of adult. Thibet. Presented by B. H. 

 Hodgson, Esq. 



Skull without lower-jaw. Thibet. Presented by B. H. Hodg- 

 son, Esq. 



The bones of the trunk and Skull. Thibet. Presented by B. H. 

 Hodgson, Esq. 



* Two Skulls, adult. Russia. 



* Skull, young. Russia. 



The Thibet Marmot. Arctomys Tibetanus. 



* Skull. Thibet. Presented by B. H. Hodgson, Esq. 



Siphenus, Brandt. 



The Zoker. Siphenus Aspalax. 



* Skull. Altai Mountains. From Mr. Brandt's collection. 



* Skull. Altai Mountains. From Mr. Brandt's collection. 



* Skull. Altai Mountains. From Mr. Brandt's collection. 



Georychus, lllig. 



The Silky Ground Rat. Georychus holosericeus. 



* Skull. South Africa. 



