66 ^PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 

 Subfamily CRICETINAE. 



Genus ONYCHOMYS Baird. 



1857. Onychomys BAIRD, Mamm. N. Amer., p. 458. Type. 

 Hypudaeus leucogaster WIED. 



Onychomys arcticeps Rhoads. 



1898. Onychomys arcticeps RHOADS, Proc. acad. nat. sci. 



Phila.,p. 194. May 3, 1898. 

 TYPE LOCALITY. Clapham, Union County, New Mexico. 



Onychomys fuliginosus Merriam. 



1890. Onychomys fuliginosus MERRIAM, North Amer. fauna, 

 no. 3, p. 60. September 11, 1890. 



TYPE LOCALITY. Black Tank lava beds, northeast of San 

 Francisco Mountain, Coconino County, Arizona. 



* Onychomys leucogaster (Wied). 



1841. Hypudaeus leiicogaster WIED, Reise in das innere 



Nord Amerika, n, p. 99. 

 1857. Onychomys leucogaster BAIRD, Mamm. N. Amer., p. 



459. 

 1885. Hesperomys leucogaster TRUE, Proc. U. S. nat. mus., 



vn (1884), p. 597. 1885. 

 TYPE LOCALITY. Clark, Clark County, South Dakota. 



Onychomys leucogaster brevicaudus Merriam. 



1891. Onychomys leucogaster brevicaudus MERRIAM, North 

 Amer. fauna no. 5, p. 52. July 30, 1891. 



TYPE LOCALITY. .Blackfoot, Bingham County, Idaho. 



Onychomys longicaudus Merriam. 



1889. Onychomys longicaudus MERRIAM, North Amer. fauna, 



no. 2, p. 2. October 30, 1889. 

 TYPE LOCALITY. St. George, Washington County, Utah. 



Onychomys longipes Merriam. 



1889. Onychomys longipes MERRIAM, North Amer. fauna, 



no. 2, p. 1. October 30, 1889. 

 TYPE LOCALITY. Concho County, Texas. 



