MILLER AND REHN: NORTH AMERICAN MAMMALS. 65 

 Family MURIDAE. 



Subfamily MURINAE. 



Genus MUS Linnaeus. 







1758. Mus LINNAEUS, Syst. nat., x ed., i, p. 59. Name at 

 present restricted to genus including the species musculus and 

 rattus. 



Mus alexandrinus Geoffrey. 



1818. Mus alexandrinus GEOFFROY, Description de PEgypte, 



mammiferes, p. 733. 



Regarded by Yerbury and Thomas (Proc. zool. soc. London, 

 1895, p. 553) as a form of Mus rattus. 



TYPE LOCALITY. Alexandria, Egypt. 



Mus musculus Linnaeus. 



1758. [_Mus~] musculus LINNAEUS, Syst. nat., x ed., i, p. 62. 

 TYPE LOCALITY. Sweden. 



Mus musculus jalapae Allen and Chapman. 



1897. Mus musculus jalapae ALLEN and CHAPMAN, Bull. 



Amer. mus. nat. hist., ix, p. 198. June 16, 1897. 

 TYPE LOCALITY. Jalapa, State of Vera Cruz, Mexico. 



Mus norvegicus Erxleben. 



1777. [Mus~] norvegicus ERXLEBEN, Syst. regni anim., i, p. 



381. 



TYPE LOCALITY. Norway. 



Usually known as Mus decumanus (Pallas, nov. sp. quadr. glir. 

 ord., p. 91, 1778). For change see Rehn, Proc. biol. soc. Wash- 

 ington, xm, p. 167, October 31, 1900. 



Mus rattus Linnaeus. 



1758. [Mus] rattus LINNAEUS, Syst. nat., x ed., i, p. 61. 

 TYPE LOCALITY. Sweden. 



