58 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



According to Allen (Bull. Amer. nius. nat. hist., x, pp. 455-456,. 

 November 10, 1898) this should stand as (U/noinys leicixii (Arc- 

 tomys letoisii Audubon and Bachman, Quadr. N. Amer., iii, 

 p. 32, 1853, type locality, ' Oregon'). 



* Cynomys ludovicianus (Ord). 



1815. Arcto)>n/s ludovicianus Ord, Guthrie's geography, 2d 



Amer. ed., ii, p. 292. Description on page 802. 

 1857. Cyiio)ii,ys litdoiricia/ius Baird, Mamm . N. Amer., p. 331 . 

 1885. Cynomys ludovicianus True, Proc. IT. S. nat. mus., 



VII (1884), p. 593. 1885. 

 Type locality. — " Missouri and throughout Louisiana." 



Cynomys mexicanus Merriam. 



1892. Cynomys mexicanus Merriam, Proc. biol. soc. Wash- 

 ington, VII, p. 157. July 27, 1892. 

 Type locality. — La Ventura, State of Coahuila, Mexico. 



Genus ARCTOMYS Schreber.i 



1780. Arctomys, Schreber, Saugthiere, iv, pis. ccvii-ccxi. 

 Included the species marmota, monax, Ijobac, empetra and citillus. 



Arctomys dacota Merriam. 



1889. Arctomys dacota Merriam, North Amer. fauna, no. 2,' 



p. 8. October 30, 1889. 

 Type locality. — Custer, Black Hills, South Dakota. 



* Arctomys flaviventer Audubon and Bachman. 



1841. Arctomys Jlavivettter Audubon and Bachman, Proc. 



acad. nat. sci. Phila., p. 99. 

 1885. Arctomys flaviventer True, Proc. U. S. nat. mus., vii 



(1884), p. 593. ' 1885. 

 Type locality. — " Mountains between Texas and California." 



1 Palmer has suggested (Science, n. s., vi, p. 105, July 16, 1897) that this name majr 

 eventually be displaced by Marmota Blumenbach, 1779 (Handb. d. Naturgeschichte). 



