476 Field Museum of Natural History — Zoology, Vol. XL 



Specimens examined from Illinois: 

 Illinois — Olive Branch, Alexander Co., ii, (5 in alcohol) =11. 



Map showing approximate range of the Rafinesque Bat (Nycliceius humeralis) in the United 



States. 



Corynorhinus macrotis (LeConte), Big-eared Bat. The Big-eared 

 Bat has not been recorded from within our limits, but it is not unlikely 

 that it occurs in Illinois and it should be carefully looked for in the 

 caves along the Wabash River in Hardin and Polk counties in the 

 extreme southeastern portion of the state. In Indiana it has been 

 recorded from Greencastle, Putnam Co.;* and Mitchell, Lawrence 

 Co.;t and Hahn states he saw six individuals in the caves at the latter 

 place during the winter of 1906-07 and secured two specimens. + 



The species may readily be distinguished from our other Bats by 

 its huge ears which measure an inch or more in length. The gen- 



* Butler, Proc. Ind. Acad. Sci., 1894 (1895), p. 86. 

 t McAtee, Proc. Biol. Soc. Wash., XX, 1907, p. 7. 

 X Ann. Rept. Dept. Geol. & Nat. Resources Ind., 1908 (1909), p. 619. 



