Feb., 1912. Mammals of Illinois and Wisconsin — Cory. 475 



Genus NYCTICEIUS Rafinesque. 



Nycticeius Rafinesque, Journ. de Ph^^sique, LXXXVIII, 1819, p. 417. 



Type Vespertilio humeralis Rafinesque. 



"Upper incisor distinctly separated from canine; lower incisors 



scarcely crowded ; outer lower incisor tricuspidate and not smaller than 



others; skull low and narrow; uropatagium furred at extreme base 



only; tragus blunt and bent forward; tip of tail free from membrane; 



mammae 2." (Miller, /. c, p. 118.) 



I — I i"~i i~i '^~ ^ 



Dental formula: I. > C. > Pm. j M. ^^ — -= 30. 



3-3 i-i 2-2 7,-7, 



Nycticeius humeralis (Rafinesque). 

 Rafinesque Bat. 



Vespertilio humeralis Rafinesque, Amer. Month. Mag., III. 1818, p. 445. 



N [ycticeius] humeralis Rafinesque, Journ. de Physique, LXXXVIII, 1819, p. 417. 



Nycticejus humeralis Rhoads, Proc. Acad. Nat. Sci. Phila., 1896 (1897), p. 204 



(Tennessee). 

 Nycticejus crepuscularis True, Proc. U. S. Nat. Mus., VII, 1884 (1885), p. 602. 

 Nycticeius humeralis Miller, N. Amer. Fauna, No. 13, 1897, p. 118 (Kentucky, 



etc.). Hahn, Ann. Rept. Dept. Geol. & Nat. Resources Ind., 1908 (1909), 



p. 649. Wood, Bull. 111. State Lab. Nat. Hist., VIII, 1910, p. 600 (Illinois). 



Howell, Proc. Biol. Soc. Wash., XXIII, 1910, p. 33 (Illinois, Kentucky). 



Type locality ■ — Kentucky. 



Distribution — Southern United States, north to Pennsylvania and 



Illinois and west to Nebraska and Texas. 



Description — Upper front teeth (incisors) between canines 2 ; tip of tail 



extending slightly beyond interfemoral membrane; 



general color dull umber brown above, paler 



below; fur decidedly darker at base; general color 



somewhat variable, the color of the upper parts 



*'(W-T^ occasionally approaching sepia brown ; ears rather 



small, thick and leathery; tragus short and not 



sharp pointed. 



Measurements — Total length, about 3.65 in. (92 mm.); tail, 1.40 in. 

 (35 mm.); foot, .40 in. (10 mm.); expanse, about 9.50 in. 

 So far as known, the range of the Rafinesque Bat within our Hmits 

 is restricted to about the southern two-thirds of Illinois. There are 

 specimens in the Field Museum collection from Olive Branch, Alexander 

 Co.; and Howell records it from that locality; Wood states that it is 

 not rare in Champaign County (/. c, p. 600), which is the most northern 

 record we have for the state. 



