MAMMALS OF PENNSYLVANIA AND NEW JERSEY. 215 



heights of Weehawken [Huds. Co.], in New Jersey, near this city [New York] 

 in broad daylight. It was hovering and fluttering about the precipice in the 

 manner of other bats, and occasionally darting towards the low grounds, 

 more like a bird. I have witnessed at the same locality the similar evolu- 

 tions of a bat, probably of this species, that was flying about early one fine 

 afternoon, though it kept below the shadow of the rocks." 



Habits, etc. — Merriara states that this bat can be easily recognized while 

 awing by its great size, long, pointed wings and swift, irregular flight. It 

 covers a great extent of country in its forays after food. It did not appear 

 in the Adirondacks on very hot summer evenings, waiting for the temperature 

 to fall to a point below 60°. If it was 55° to 58° soon after sunset it would 

 come out early. Its geographic distribution extends farther into the Arctic 

 confines than that of any other species of bat. Its breedmg habits are not 

 understood. A specimen with four recently nursed teats was taken on the 

 30th of June. They act as if rutting in early August in the Adirondacks. 

 The only young he ever saw was shot in early August, nearly full grown. 

 This would indicate birth in May or June. 



Description of species. — See under preceding species, A. borealis. 



Genus Nycticeius Rafinesque, Journal de Physique, 1819, vol. 88, p. 417. 



Rafinesque's Little Brown Bat. Nycticeius humeralis (Rafinesque). 



18 1 8. Vespertilio humeralis Rafinesque, American Monthly Magazine, vol. 



3» P- 445- 



1819. N.^^ycticeius^ humeralis Rafinesque, Journal de Physique, vol. 88, 

 p. 417. 



Type locality. — Kentucky. 



Faunal distribution. — "Austral zones in eastern United States; west to 

 Arkansas and southern Texas." — Miller. 



Distribution in Pa. and N. J. — The only records of this bat in our lin:iits 

 that are known to me are the twelve specimens examined by G. S. Miller, Jr., 

 in his " Revision " as coming from Carlisle, Pa. They are, I presume, in 

 the National Museum, and were probably collected many years ago in a cave 

 near Carlisle by Prof. Baird. It is strange that among the hundreds of bats 

 which have been more recently collected in Pa. and N. J., none of this 

 genus should have been taken, as the majority of our specimens have been 

 secured in localities more austral than Carlisle. It must be an extremely 

 rare species, if not absent, in the Delaware Valley. The Susquehanna Valley, 

 connecting more directly by way of the Chesapeake, in a faunal sense, with 

 their chosen haunts in Maryland and Virginia, seems to be the most northern 

 record of their wanderings. 



