﻿80 



NORTH AMERICAN FAUNA. 



Specimens examined. — Total number 32, from the following localities: 



Arizona: Chiricahna Mountains, 1 (skin, Am. Mns. Nat. Hist.); San Francisco 

 Mountain,!; Spriugerville, 2 (skins): White Mountains, 2 (skins, Am. jSIus. 

 Nat. Hist.). 



British Columbia: Shuswap, 1 (skin). 



California: Dulzura, 3 (2 skins, Miller coll., 1, Am. Mus. Nat. Hist.); Inyo 

 Mountains, 1; Owens Lake, 1; San Bernardino Mountains, 1 (skin. Merriam 

 coll.); North Fork San Joaquin River, 1; Twin Oaks, San Diego County, 1. 



Chihuahua: San Luis Mts., 1 (skin). 



Colorado: Lo\ eland, 4 (2 skins, Miller coll.). 



Montana: Hot Springs, 1. 



Nevada: Cottonwood Range, 1; Pahrauagat Valley, 1. 

 New Mexico: Yermejo River, 1 (skin). 



Oregon: Blue Creek, 1; Harney, 1; Twelve Mile Creek, 1. 

 Vera Cruz : Perote, 1. 

 Washington: Easton, 1; Colville, 1. 



Wyoming: Bull Lake (east of Fremont Peak), 1; Kinney Ranch, Sweetwater 

 County, 1 (skin. Am, Mus, Nat, Hist,, type of V. chrysonotus J, A. Allen). 



General remarlis. — Myotis evotis is so totally distinct from all other 

 bats occurring in Mexico or the United States that no detailed com- 

 l)arison with any is needed. The only si)ecies with which it could be 

 confused are M. thysanodes and M. suhulatus. The ears, however, are 

 much larger than m either of these, and the free border of the uropata- 

 gium is never denselj^ haired, as in 71/. thysanodes. 



Through the kindness of Dr. J. A. Allen, T have before me the type 

 of YespertiHo chrysonotus from Kinney Eanch, Wyoming. I am unable 

 to find that it differs in any waj^ from Myotis evotis. The tail is muti- 

 lated so that it gives no characters. The forearm is only 2 mm. longe 

 than in the largest evotis from the United States that I have seen, a 

 difference too trivial to be taken into account. In color the type of 

 chrysonotus is a barely perceptible shade yellower than skins of evotis 

 from the San Bernardino IMountains, California, and Yermejo Eiver, 

 l!few Mexico, but the difference is wholly inconsequential. 



MYOTIS THYSANODES sp, nov. Fringed Bat. 



1893. VespertUlo albescens velifer (variety) H. Allen, Monogr. Bats N.Am,, p, 93. Dul-. 

 zura, California. 



1893. Vespertilio albescens evotis H. Allen. Monogr. Bats N. Am., p. 90 (part, specimen 



No. 29827, from old Fort Tejou, California). 

 Type from Old Fort Tejou, California. Adult 9 (in alcohol). No. 29827, U. S. 



National Museum (Biological Survey collection). Collected July 5, 1891, by T. S. 



Palmer. Original number, 235. 



Geographic distribution. — Lower Souoran zone from near the southern 

 border of the Western United States to San Luis Potosi and Michoacau. 



General characters. — In size nearly eqnal to Myotis velifer. Length, 

 85 to 95; forearm, 40 to 46. Calcar thick and distinct, usually termi- 

 nating in a well-marked pointed projection. Free border of uropata- 

 gium thickened and densely haired. Ears moderately long; laid for. 

 ward thej reach 3 to 5 mm. beyond nostril. Wings from i^oint between 

 pukle and base of toes, but nearer latter. 



