PRELIMINARY LIST OF THE MAMMALS OF NEW YORK 315 



of Oneida, Madison co. writes me, under date of February 3, 1898, 

 that he first saw the brown rat when his family moved to Oneida valley 

 in 1837. Previously the Wilsons had lived near Peterboro (about 12 

 miles distant), where only the black rat occurred. 



Peromyscus leucopus noveboracensis (Fischer) Northeastern 

 white-footed mouse 



1829 \_Mus sylvaticus] A Noveboracensis Fischer. Synopsis mammalium. 



p. 318. 



1830 Cricetus myoides Gapper, Zool. journ. 5 : 204. 



1842 Mus leucopus De Kay, Zoology of New York, Mammalia, p. 82. 

 1884 Hesperomys leucopus Merriam, Linn. soc. New York. Trans. 

 2 : 165 (part). 



1896 Peromyscus leucopus Fisher, The Observer. May 1896. 7 : 197. 



1897 Peromyscus leucopus my odes (sic) Rhoads, Acad. nat. sci. Phila- 



delphia. Proc. p. 27. 



1897 Peromyscus leucopus noveboracensis Miller, Boston soc. nat. hist. 



Proc. 30 Ap. 1897. 28:22. 



1898 Peromyscus leucopus Mearns, Am. mus. nat. hist. Bui. 9 Sep. 



1898. 10:334. 

 1898 Peromyscus leucopus Mearns, U. S. Nat. mus. Proc. 21 :35c 



Type locality. New York. 



Faunal position. Transition zone and lowermost edge of Canadian 

 zone. 



Habitat. Dry, open woods, thickets, fields, outbuildings and occasion- 

 ally houses. 



Distribution in New York. The northeastern white-footed mouse 

 occurs throughout New York state except in the boreal area occupied by 

 the Canadian white-footed mouse, and in a few localities where the genus 

 Peromyscus is not found. It is possible that in the lower Hudson valley 

 this form is replaced by the southeastern white- footed mouse as implied 

 by Rhoads ('97a, p. 27), but I am not satisfied that this is actually the 

 case. 



Principal records. DeKay: " The jumping [ = white-footed] mouse is 

 found in every part of the state, and is said to build its nest in trees" 

 ('42, p. 83). Merriam : " The white-footed mouse is common in all parts 

 of the Adirondacks " ('84d, p. 165). Fisher: "Common [at Sing Sing]. 

 This mouse is found everywhere in the woods and groves about fence 

 rows, and in fall and winter ventures to the stacks and out-houses " 

 ('96, p. 197-98). Mearns: "This beautiful mouse was rather abun- 



