148 NEW YORK STATE MUSEUM 



General color varying from rufous red to yellowish gray ; a ivhite spot at 

 shoulder, sometimes connected with its fellow by a white chest band. Total 

 length, 110 (4i); tail vertebrae, 50 (2); forearm, 40 (lA). (borealis; Lat., 

 northern) 



The red bat occurs in a great variety of situations throughout most 



of North America. It is divisible into several geographic races. The 



typical form, L. borealis borealis is the only one that occurs 



within our limits. 



Genus Nycticeius Rafinesque 



1819 Nycticeius Rafinesque, Journal de physique. 88 : 417. Type N. h u m e r- 

 alis Rafinesque. 

 Teeth 30; only two front teeth in upper jaw between canines ; back of mem- 

 brane between legs furred at extreme base only; ears short, obtusely pointed. 

 (Nycticeius; Gk., night being). 



Nycticeius is pecuHar to North America, though closely related to 

 an old world genus (S co tophilus). It is represented by one species 

 only, a small but thickset bat with broad muzzle and blunt ears. 



Nycticeius humeralis Rafinesque Rafinesque' s bat 



1818 Vespertilio humeralis Rafinesque, American monthly magazine> 3: 



445. (Kentucky) 



1819 Nycticeius humeralis Rafinesque, Journal de physique. 88 : 417. 

 1897 Nycticeius humeralis Miller, North American fauna. 16 Oct. 1897. 



no. 13, p. 118. 

 Dull umber brown above, paler below. Total length 90 (3^) ; tail vertebrae, 

 36 (1/u) ; forearm, 36 (Its), (humeriilis; Lat., humeral) 



Rafinesque's bat inhabits the austral zones of the eastern United States. 

 At present it has not been found north of Carlisle Pa. 



Genus Myotis Kaup 



1829 Myotis Kaup, Skizzirte Eutw.-gesch. u. natiirl. syst. d. Europ. Thierw. 



1 : 106. Type Vespertilio murinus Schreber = Y. myotis Bech- 



stein. 

 Teeth 38; two pairs of front teeth in upper jaw between canines; back of 

 membrane between legs naked except at extreme base. (My(3tis; Gk., 

 mouse ear) 



The genus Myotis is very widely distributed in both eastern and 

 western hemispheres. The species are still imperfectly known. In 

 North America 16 forms are known, but only two of these occur within 

 our limits. These are small delicately formed bats with slender muzzles- 

 and narrow ears. 



