Feb., 1912. Mammals of Illinois and Wisconsin — Cory. 477 



-,^0 extend 



eral color of this Bat is pale sepia brown, or yellowish brown, the fur 



darker at the base; the belly is 

 .J grayish white. The tail does not 

 beyond the interfemoral 

 membrane. Total length, about 

 4 in. (105 mm.); tail vertebras, 

 about 2 in. (50 mm.); forearm, 

 about 1.60 in. (41 mm.); ear, about 

 1.20 in. (30 mm.). 



The range of the Big-eared Bat 

 is restricted, so far as known, to 

 southeastern United States, the type locality being Georgia. 



Big-eared Bat. 



Family MOLOSSID^. 



Nyctinomus depressus (Ward),* Free-tailed Bat. It is not 



unlikely that stragglers belonging to this species may occur in Illinois; 



a specimen was found dead in Central 

 Park, Cedar Rapids, Iowa, in the fall 

 of 1 9 10, which was secured by Dr. 

 B. H. Bailey who kindly sent it to me 

 for examination. It may readily be dis- 

 tinguished from others of our Bats by 

 the character of the tail, the free por- 

 tion of which extends about an inch 

 beyond the interfemoral membrane. 

 Other characters which will aid in its 

 identification are, ears large and ap- 

 parently united; general color very dark umber brown. Measurements 

 (from dried skin), total length, about 4.50 in. (115 mm.); total length 

 of tail vertebras, about 1.65 in. (42 mm.); length of free portion of tail 

 vertebra, about .90 in. (23 mm.); length of foreami, 2.40 in. (61 mm.); 

 height of ear about .65 in. (16.5 mm.) The occurrence of this Bat 

 in eastern Iowa greatly extends its previously known range. Speci- 

 mens of this wandering Mexican species have been taken in California, 

 Arizona, Colorado and Nevada. f Another and quite different species 

 belonging to this genus {Nyctinomus mexicanus) is common in Florida 

 and the Gulf states. 



* Ward, American Naturalist, XXV, 1S91, p. 747. Type locality — Tacubaya, 

 City of Mexico. 



t Mr. Gerrit vS. Miller, Jr. considers the specimen taken in Nevada and described 

 by H. Allen as Nyctinomus macrotis nevadtnsis (Monog. Bats N. Amer., 1893, p. 171) 

 to be this species. (See Proc. Biol. Soc. Wash., XV, 1902, p. 250.) 



