ALLEN: BATS OF THE GEXUS CORTNORHEN'US. 



347 



Oregon: Gold Beach, 6 (Field Mus. Xat. Hist.). 

 McKenzie Bridge, 3 (Biol. Surv.). 

 Vida 1 (Biol. Surv.). 

 California : IMt. 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 tx-pical (Univ. of Calif.). 

 ^Miller has also recorded it from Creswell, Oregon. 



CORYNORHIXUS MEGALOTIS MEXIC.Os'US, subsp. nov. 



Mexican Big-eared Bat. 



Plecotus (Oorinorhinus) townsendi J. A. Allen, Bull. Amer. mus. nat. hist., 



1890, 3, p. 176 (not of Cooper, 1837 j. 

 Corynorhinus macrotis pallesceris Miller, X. Amer. fauna, 1897, no. 13, p. 52, 



f. 10 (in part — Mexican specimens cited). 



Type. — Skin and skull, 9S2S5, Biological Survey collection, adult 

 female, collected by E. W. Xelson and E. A. Goldman, 25 Aug., 1S99. 



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 w-ith weak canines, a short and contracted rostrum with 

 evenly tapering lateral outlines as seen from above; color dark, the 

 hairs nearly tmiform 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 j)elage 

 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 t\"pical megalotis of the eastern United 

 States. 



