33 



been taken in Southern New Jersey, 1 and in Wareham, 

 Massachusetts. 2 As Dr. Coues, 3 in 1877, reported it from 

 Kansas, Oregon, and Alaska, the genus has probably a wide 

 distribution, and may be found to embrace several quite 

 distinct forms. It evidently occurs in the East over por- 

 tions of the country where it has escaped all collectors for 

 half a century, since, as compared with other field mice, it 

 proves to be a singularly difficult species to trap. Indeed, 

 the Virginia and New York records rest on skulls found in 

 pellets from stomachs of owls, and the Maryland record on 

 a specimen taken from the stomach of a hawk. 



A Meadow Mouse, also with grooved incisors, like 

 Synaptomys, has been recently described by Mr. Rhoads 

 from Kittitas Co., Washington, as the type of a new genus 

 Aulacomys* 



The genus Arvicola, embracing the common Meadow 

 Mice, has been increased in the last ten years from 8 spe- 

 cies and 2 subspecies to 15 species and 5 subspecies. 5 



The Wood Rats {Neotoma) and Cotton Rats {Sigmodon) 

 have undergone corresponding revision and increase. Not 

 only has Neotoma micropus of Baird been revived, but the 

 number of forms of Neotoma has been raised from 4 to 



1 S. N. Rhoads, Am. Nat., Jan., 1893 p 53. Described as Synaptomys 

 stonei, sp. nov. 



2 Outram Bangs, Proc. Biol. Soc. Wash., IX., pp. 99-104, April, 1894. 



3 Mon. N. Am. Roden., pp. 235, 236. 



4 Am. Nat., Feb. 1894, p. 182. Type A. arvicoloides, sp. nov. 



5 Additions subsequent to Bryant's List ot 1892 are as follows : 



Arvicola edax Baird (Revived; cf. Allen, Bull. Am. Mus. Nat. Hist., V., 

 1893, p. 184.) 



Arvicola aztecus Allen, ibid., p. 73, April, 1893. Aztec and La Plata, New 

 Mexico. 



Arvicola operarius Nelson, Proc. Biol. Soc. Wash., VIII. , p. 139, Dec, 

 1893. St. Michaels, Norton Sound, Alaska. 



Arvicola phceus Merriam, ibid., VII., p. 171, Sept., 1892. Sierra Nevada 

 de Colima, Jalisco, Mexico. 



Arvicola chrotorrhinus Miller, Proc. Bost. Soc. Nat. Hist., XXVI., p. 190 

 March, 1894. White Mts., N. H. 



