CASTOR. MUS. 129 



c. Castor canadensis pacificus Rhoads. 



Castor canadensis pacificus Rhoads, Trans. Am. Philos., 1898, 

 p. 422, Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 p. 117. Zool. Ser. 

 Pacific Coast Beaver. 



Type locality. Lake Kichelos, Cascade Mountains, Kittitass 

 County, Washington. 



Geogr. Distr. Pacific Slope ; California to Alaska. 



Family IV. lluridse. Rats, Mice, Voles. 



Subfamily I. Murinee. 

 Genus 58. Mvi.s. 



Mus Linn., Syst. Nat., i, 1758, p. 59; i, 1766, p. 79. Type Mus 

 rattus Linnaeus. 



250. Mus rattus Linnaeus. 



Mus rattus Linn., Syst. Nat., i, 1758, p. 61; i, 1766, p. 83. Elliot, 

 Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 117, fig. 28. 

 Zool. Ser. Id. Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., IV, Pt. I, 1904, p. 163, figs. 31, XXXV. Zool. Ser. 

 Black Rat. 



Type locality. Sweden. 



Geogr. Distr. Cosmopolitan. 



251. Mus norvegicus Erxleben. 



Mus norvegicus Erxl., Syst. Regn. Anim., 1777, p. 381. Elliot, 



Syn. N. Am. Mamm., 11, 1901, Append., p. 428. Zool. Ser. 



Id. Mamm. Middle Amer. & W. Indies, F. C. M. Pub., iv, 



Pt. I, 1904, p. 164. Zool. Ser. 

 Mus decumanus Pall., Nov. Sp. Quad. Glir., 1778, p. 91. Elliot, 



Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 117. Zool. Ser. 

 Norway Rat. 



Type locality. Norway. 

 Geogr. Distr. Cosmopolitan. 



252. Mus alexandrinus I. Geoff roy. 



Mus alexandrinus I. Geoff^., D^scr. ^^gypte, 11, 1813, p. 733; Atl. 

 pi. V, fig. I. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 

 II, 1901, p. 118. Zool. Ser. Id. Mamm. Middle Amer. & W. 

 Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 164. Zool. Ser 



Mus tectorum Savi, Nov. Giom. di Lett., 1825. 



