October 31, 1914 
\ \ ^0 0 V 
Vol. XXVII, pp. 211-212 
PROCEEDINGS 
OF THK 
BIOLOGICAL SOCIETY OF WASHINGTON 
TWO NEW NOIITH AMERICAN BATS, 
BY GERKIT S. MILLER, JR. 
Having recently examined the bats of the Myotis lucifngus 
group in the United States National Museum, including the 
large series of skins in the Biological Survey collection, I find 
two forms which have not yet been described. Both are races 
of the wide-ranging 3Iyotis longicrus (True), an animal which 
proves to be specifically distinct from M. lucifugus. 
Myotis longicrus interior subsp. nov. 
—Adult nude (skin and skull), No. 133,426 U. S. National Mn- 
senm (Biological Survey Collection). Collected five miles south of Twin¬ 
ing, Taos County, New IMexico (altitude 11,300 feet), July 23, 1904, by 
Vernon Bailey. Original number 8182. 
Characters .—Similar to Myotis longicrus longicrus but color e.ssentially 
like that of M. Iticifxigus (type tawny-olive above, faintly lighter below), 
not darkened as in tlie iiorthwest coast race; skull tending to be slightly 
larger than in true longicrus and with less abruptly rising frontal and 
occipital regions; teeth normal. 
Measurements. —Type: bead and body, 52; tail, 38; tibia, 18, foot, 8.4, 
forearm, 37; thumb, 7.4; third finger, 66; condylobasal length of skull 
(teeth moderately worn), 14.0; zygomatic breadth, 8.8; lachrymal 
breadth, 5.0; breadth of braincase, 7.4; occipital depth, 5.4; mandible, 
10.2; maxillary toothrow', 5.2; mandibular tootbrow, 5.7. 
Specimens exaviinecl.-Thnty-l\\’e, from the following localities: 
Nev.xd.v: Cottonwood Range, 1: Panaca, 1. 
In.Mio: Birch Creek, 1 ; Inkom, 1 ; Malad, 1 ; Mission, 1. 
Wyo.mixg: Geyser Basin, 1; LakeEork, IVind River Mts., 1; Rattle¬ 
snake Mts., 1. 
Coi.oKAUo: Grand Junction, 1; Coventry, 1. 
Nuw Mkxico: Costilla River, 2; Raton Range, 1; Santa Clara Can- 
yom 2; Santa Fe, 1; Sierra Grande, 2; Twining, 5; Willis, 2. 
41 —Pitoc. Bioc. SOC. Wash., Vor.. XXVII, 1914. 
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