60 Miller — Desci'ljdLoii, of a New White-Fooled Mouse 



tail itself, 3] inches." Thus color and measurements alike refer 

 to S. americanas. Moreover, two white-footed mice kindly sent 

 me in the flesh by Mr. I. R. Bourchier, of Sutton, West Ontario, 

 Canada, just south of Lake Simcoe, are perfectly tyi)ical of the 

 smaller form, 



Arvicola emriionsll De Kay, from Massachusetts (in Ennnons' 

 Report on the Quadrupeds of Massachusetts) is clearly a syno- 

 nym of amerkanm. The color is given as simply " brown aljove, 

 darker along the back than the sides," but the whole length is 

 stated to be 6 inches ; tail, 2.5 inches. This animal is said to 

 inhabit " meadows and wooded ])laces. It is often seen in fields 

 recendy vioived, and is known l)y the name of Deer Mouse" 

 (italics mine). SUomys amerlcanus canadensis nevqr occurs in 

 fields and meadows, where, however, S. americanus is often found. 



Wagner's Hesperomys viaaiculatus (Wiegmann's Archiv., xi, 

 1845, Bd. 1, 148*), from the Moravian settlements in Lal)ra,dor, is 

 described as " supra fuliginoso l)runneus * * * Kor2)er o" 

 2'", Schwanz 2" 5'"." In Beitriige zur Kentniss der .Siiugthiere 

 Amerikas (Abhandl. Ak. Wiss. Wien, 1848, 315, 310) the author 

 gives practically the same diagnosis, followed by the remarks : 

 " Gestalt, Grosse und Farljenvertheilung verhalt sich wie l)ei //. 

 leueojiiis, so class ich nur die Difierenzen anzugeben brauche, 

 welclie sich zwischen ihr und dem letztern, von dem ich der- 

 malen nur Beschreibungen, und zwar zunachstdie Richardson's 

 vergleichen kann, ergeben. iJiese Abweichungen bestehen darin, 

 dass bei H. manicidatics die Oberseite weit triiber gefiirbt ist, 

 indem sie namlich bios russig gelblichbraun und schwarz ge- 

 sprenkelt ist, ohne Beimischung von Rostroth vie es von H. 

 leiicopus angegeben wird." This description is somewhat puz- 

 zling, and without specimens from the coast of Labrador it is 

 impossible to decide just what animal it refers to. That S. cana- 

 densis is not Wagner's animal is shown by the measurements, 

 which being takea from " 2 Weingeist Examplaren " must be 

 fairly accurate. 



Hesperomys campestris Le Conte, from New Jerse}'', is described 

 so vaguely (Proc. Ac. Nat. Sci. Phila., vi, 1853, 413) that, to use 

 Professor Baird's words (Mam. N. Am., 1857, 485) : " Of tlie affini- 

 ties of this animal I will hazard no conjecture." That it is not 

 the same as S. canadensis is shown by the measurements — length, 



*Not "1843, n, 141, and 1845, ii. 148," as given l)y Buird and Coues. 



