AMERICAN BATS OF THE GENERA MYOTIS AND PIZONTX 169 



Measurements. — For measurements see tables, pages 173 and 174. 

 Specimens examined. — Total number 38, from the following 

 localities : 



COLORADO: Chimney Canyon, Avalo, Weld County, 1 skin, 1 ale. 

 (U.S.N.M.) ; Colorado Springs, 1 mounted (Colorado College). 



KANSAS : Banner, Trego County, 6 ale, type and paratypes of cUiolabrum 

 (U.S.N.M.) ; near Castle Rock, Trego County, 2 skins (K. U.). 



MONTANA: Big Timber, 1 skin (U.S.N.M.) ; Miles City, 1 skin (U.S.N.M.). 



NEBRASKA: Chadron, 1 ale. (U.S.N.M.). 



SOUTH DAKOTA: Custer, 3 skins (U.S.N.M.), 1 ale. (A. M. N. H.) ; 

 Hermosa, 1 ale. (U.S.N.M.) ; Pine Ridge, 6 skins (A. M. N. H.). 



WYOMING: Bitter Creek, 2 sldns (A. M. N. H.) ; Bull Lake, Shoshone 

 Indian Reservation, 1 ale (U.S.N.M.) ; Cody, 1 skin (U.S.N.M.) ; Fort 

 Bridger, 1 skin, nearly typical (U. C.) ; GreybuU, 4 skins (U.S.N.M.) ; 

 Kinney Ranch, 1 ale. (A. M. N. H.) ; Otto, 2 skins (A. M. N. H.) ; Rattle- 

 snake Mountains, 1 skin (U.S.N.M.). 



Remxwhs. — While the series from various localities in the dry in- 

 terior from South Dakota and Montana to southeastern Colorado is 

 decidedl}^ paler and whiter-bellied than that from New Mexico, 

 Arizona, California, and eastern Oregon, the difference is not always 

 very marked, and the typical race merges into the next by almost 

 imperceptible degrees. This is the only known form of the species 

 m which the underparts are normally so pallid as actually to 

 approach white. 



MYOTIS SUBULATUS MELANGRHINUS (Merriam) 



Yespertilio ciliolabrum Meeiriam, Proc. Biol. Soc. Washington, voL 4, p. 4, 

 December 17, 1886 (part; sx)ecimens from Grant County, N. Mex.). 



Myotis californicus Giliolabrum Caby, North Amer. Fauna, No. 33, p. 209, 

 August 17, 1911 (part; specimen from Snake River, Routt County, Colo.). 



Vespertilio melanorhinus Merbiam, North Amer. Fauna, No. 3, p. 46, Sep- 

 tember 11, 1890.— Miller, North Amer. Fauna. No. 13, p. 69, October 16, 1897 

 (as synonym of californicus) . — Mlller and Rehn, Proc. Boston Soc. Nat. 

 Hist., vol. 30, p. 308, December 27, 1901.— Lton and Osgood, Catal. Type-Sp. 

 Mamm. U. S. Nat. Mus., Bull. U. S. Nat. Mus., No. 62, p. 271, January 28, 

 1909. 



Vespertilio albescens melanorhinus H. Allen, Monogr. Bats North Amer., Bull. 

 U. S. Nat. Mus., No. 43 (1893), p. 91, March 14, 1894.— Tbotjessaet., Catal. 

 Mamm. viv. foss., p. 132, 1897. 



Vespertilio nitidus henshatvii H. Allen, Monogr. Bats North Amer., Bull. U. S. 

 Nat. Mus., No. 43 (1893), p. 103, March 14, 1894 (Wingate, N. Mex.).— 

 Miller, North Amer. Fauna, No. 13, p. 69. October 16, 1897 (as synonym of 

 californicus). — Miller and Rehn, Proc. Boston Soc. Nat. Hist., vol. 30, p. 

 308, December 27, 1901. 



Myotis orinomiis Elliot, Field Columbian Mus., publ. 79, zool. ser., vol. 3, p. 

 228, June, 1903 (La Grulla, San Pedro Martir Mountains, Lower California, 

 Mexico, altitude, 8000 feet) ; Land and Sea Mamm. Middle Amer., Field 

 Columb. Mus., publ. 95, zool. ser., vol. 4, p. 577, 1904 ; Check List Mamm. 

 North Amer., Field Columb. Mus., publ. 105, zool. ser., vol. 6, p. 476, 1905; 

 Catal. Mamm. Field Columb. Mus., Field Columb. Mus., publ. 115, zool. ser., 

 58518—28 12 



