24 JERBOID^S. - 



Family JERBOID.E. 



Genus DIPUS. 



151. Dipus cegyptius (Hasselq.). Jerboa. 

 Hob. Egypt. 



a. Male. Presented by the Hon. Mrs. Stuart, Sept. 9, 1861. 

 6. Male. c. Female. Purchased, Jan. 14, 1862. 



Family MURID^E. 



Genus Mus. 



152. Mus barbaruSj Linn. Barbary Mouse. 

 Hob. Barbary. 



a, 6, c. Presented by M. Pichot, Aug. 1, 1860. 



Genus FIBER. 



153. Fiber zibethicus (Linn.). Musquash. 

 Hob. North America. 



a. Female. Presented by Lieut. Thomas H. Archer, 39th Kegt., 



Sept. 3, 1860. 



b. Male. Presented by Capt. David Herd, Oct. 11, 1861. 



Genus CASTOR. 



154. Castor canadensis, Kuhl. Castor. 

 Hob. North America. 



a, b. Deposited by the Hudson's Bay Company, Oct. 26, 1861. 



Genus MYOPOTAMUS. 



155. Myopotamus coy pus (Mol.). Coypu. 

 Hob. South America. 



a, 6. Purchased, June 3, 1858. 



Family HYSTEICID^E. 

 Genus ERETHIZON. 



156. Erethizon dorsatum (Lirm.). Canadian Porcupine. 

 Hob. North America. 



a. Presented by Major Boyd, Jan. 24, 1861. 



