VOL. XII, pp. 187-188 NOVEMBER 16, 1898 



PROCEEDINGS 



OF THK 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW ROCK VOLE FROM LABRADOR. 

 BY OUTRAM BANGS. 



Early last summer Mr. Ernest Doane left Newfoundland and 

 crossed the straits of Belle Isle to Black Bay, Labrador, where 

 he has been collecting mammals ever since for the Bangs collec 

 tion. Just before he went into winter quarters he sent one con 

 signment of skins, including twelve examples of a rock vole 

 which proves to be different from true Microlm chrotorrhinus 

 (Miller). For the present I treat the new form as a subspecies. 

 The rock vole has now been recorded from several pretty widely 

 separated localities,* though it still remains one of the rarest and 

 most desirable among the smaller mammals of northeastern 

 North America. 



The Labrador series includes four adults and eight young of 

 various sizes, all agreeing closely in color. The new form differs 

 from true M. chrotorrhinus in its. paler, more yellowish gray col 

 oring, in the larger and lighter yellow nose patches, and in sev- 



* Mt. Washington (type locality 8 specimens) ; Profile Lake, N. H. 

 (1 specimen), and Trowser's Lake, N. B. (1 specimen) Miller, Proc. 

 JSosl. Soc. Nat. Hist., Mar. 24, 1894, pp. 190-193 ; Trowser's Lake (3 addi 

 tional specimens) and Galquac Lake, N. B. (1 specimen) Allen, Bull. 

 Am. Mus. Nat. Hist., 1894, P- 360 ; Lake Edward, Quebec (9 specimens) 

 Bangs, Proc. Biol. Soc. Wash., X, Mar. 9, 1896, p. 49; Breed's, Essex Co., 

 N. Y. (27 specimens), and above Profile Lake, N. H. (1 specimen) Batch- 

 elder, Proc. Bost. Soc. Nat. Hist., Oct., 1896, pp. 188, 189 ; Hunter Moun 

 tain, Catskills, N. Y. (1 specimen) Mearns, Proc. U.S. Nat. Mus., 1898, 

 p. 349. 



41 BIOL. Soc. WASH., Voi,. XII, 1898 (187) 



