214 MAMMALS OF PENNSYLVANIA AND NEW JERSEY. 



doubt this serves a useful purpose as a blanket in cold weather. The tooth 

 system is: incisors, -J-^-J- ; canines, -J-jJ ; premolars, ^ ; molars, fEf- 32, of 

 which 18 are in the lower and 14 in the upper jaw. A minute peg-like upper 

 premolar is found at the base of the large canine tooth on the inner side. 



From the hoary bat (L. cinereus) next considered, the red bat is known by 

 being only about two-thirds the bulk of that animal, which is brownish or 

 yellowish gray instead of red. The hoary bat is much larger than any other 

 Pa. or N. J. bat. 



Measurements. (borealis}, total length, no mm. (4^ in.); tail verte- 

 brae, 50 (2); forearm, 40 (I T \). (cinerus}, 135 (5^) ; 57 (2^), 52 



(A). 



Hoary Bat. Lasiurus cinereus (Beauvois). 



1796. Vespertilio cinereus (" linereus" sic.) Beauvois, Catalogue of Peale's 

 Museum, Phila., p. 15. 



1864. Lasiurus cinereus H. Allen, Monograph Bats North America, p. 2. 



Type locality. Philadelphia (?), Pennsylvania. 



Faunal distribution. Miller (Monog. Vespert., N. Amer., p. 112), gives 

 it as "Boreal North America from Atlantic to Pacific. The hoary bat breeds 

 within the Boreal zone, but in autumn and winter it migrates south to the 

 southern border of the United States, and probably much farther." 



Distribution in Pa. and N.J. All the instances of the capture of this bat 

 in the two States indicate that it was either in the spring or fall migration. 

 It may breed (reside during the summer) in the summits of the higher Alle- 

 ghanies, but I have never yet seen it there. It winters in our limits. 



Records in Pa. Clinton Co. I examined a mounted specimen in 1896, 

 taken near Renovo, in the collection of A. K. Peirce, shot in spring of 1891. 

 Rhoads. 



Delaware Co. A specimen in my collection was shot near Collingdale, 

 several years ago during a February thaw, actively flying about the borders of 

 a wood in pursuit of insects in full daylight, cloudy sky. It was taken by 

 Chas. Voelker, now of Aldan, same county. Rhoads. 



Philadelphia Co. The type of cinereus, described from a specimen or spe- 

 cimens in Peale's Museum by Beauvois, was probably taken in this county. 

 Beauvois says: "This is found in Pennsylvania." "A specimen captured 

 near Philadelphia, was presented to the Philadelphia Museum by the late 

 Professor Barton." Godman, Nat. Hist., 1826, vol. i, p. 69. 



Records in N.J. The only record for N. J. known to me is that given by 

 Cooper in the Annals of the New York Lyceum (1837), 1848, vol. 4, p. 56, 

 who says that the specimen from which his description of the Hoary Bat was 

 taken "was shot by Mr. J. F. Ward in the month of November near the 



