——————<—=_ — -— ~ -@ 
ALLEN: BATS OF THE GENUS CORYNORHINUS. 347 
Oregon: Gold Beach, 6 (Field Mus. Nat. Hist.). 
McKenzie Bridge, 3 (Biol. Surv.). 
Vida 1 (Biol. Surv.). 
California: Mt. Veeder, Napa Co., 1 (Biol. Surv.). 
Bear Valley, San Benito Co., 2 (Biol. Surv.). 
Happy Camp, Siskiyou Co. (Biol. Surv.). 
Auburn, Placer Co., 7, not all typical (Univ. of Calif.). 
Santa Catalina-Id., 1, not typical (Univ. of Calif.). 
Miller has also recorded it from Creswell, Oregon. 
CORYNORHINUS MEGALOTIS MEXICANUS, subsp. nov. 
Mexican Big-eared Bat. 
Plecotus (Corinorhinus) townsendi J. A. Allen, Bull. Amer. mus. nat. hist., 
1890, 3, p. 176 (not of Cooper, 1837). 
Corynorhinus macrotis pallescens Miller, N. Amer. fauna, 1897, no. 13, p. 52, 
f. 10 (in part — Mexican specimens cited). 
Type.— Skin and skull, 98285, Biological Survey collection, adult 
female, collected by E. W. Nelson and E. A. Goldman, 25 Aug., 1899. 
Type Locality Mexico: Chihuahua, near Pacheco. 
Distribution.— The Mexican tableland, from central and western 
Chihuahua, southward to Oaxaca and Santa Cruz; the precise limits 
are not yet fully ascertained. 
General Characters.— Smallest of the megalotis-macrotis group, the 
skull small with weak canines, a short and contracted rostrum with 
evenly tapering lateral outlines as seen from above; color dark, the 
hairs nearly uniform drab throughout. 
Color — Adult in summer; above, a nearly uniform ‘drab,’ the 
bases’ of the hairs hardly at all darker than their tips; below, the 
terminal third of the hairs is soiled whitish, the bases becoming 
gradually darker, nearly fuscous or ‘benzo brown.’ At the throat 
the dark bases show through more than elsewhere. In fall, the pelage 
is longer and more silky, with slightly more contrast between the tips 
and the bases of the hairs, the latter now decidedly darker, shading 
into a pale ‘hair brown.’ The hairs of the lower surface are tipped 
with a clearer whitish, washed with pinkish buff. In this pelage they 
approach the coloration of typical megalotis of the eastern United 
States. 
