106 BULLETIN 144, UNITED STATES NATIONAL MUSEUM 



Type specinien. — Harrison Allen ^^ listed eight individuals of his 

 "Var. (5) Northern form of VespertUio gryphvs'''' which served as 

 the basis for Trouessart's name septentrionalis. As no less than five 

 of these were from Nova Scotia one of the specimens taken by Doctor 

 Gilpin at Halifax (No. xgWs^ U. S. Nat. Mus.) may appropriately be 

 chosen as the lectotype. 



Distribution. — Eastern North America from Newfoundland and 

 Quebec south to Tennessee and South Carolina; west to North 

 Dakota, Missouri, and Arkansas. (See map 6, p. 102.) 



Gharacters. — Color approximately like that of Myotis lucifugus 

 hicifugus, not darkened as in the typical northwest-coast rate; ears 

 brown. 



Color. — The color is not essentially different from that of M. luci- 

 fugus lucifugus in the bronzy phase, but the brown hair tips are 

 neither so long nor so glossy. Consequently series of skins of the 

 two species from the same region have an obviously unlike appear- 

 ance due in part to the slight difference in color and in part to the 

 less complete covering over of the slaty under fur in M. keenii 

 septentrionalis. 



Measurements. — For measurements see tables, pages 109 and 110. 



Specimens examined. — Total number 169, from the following 

 localities : 



ARKANSAS: 2 ale. (M. C. Z.) ; Delight, 1 skin (U.S.N.M.). 



CONNECTICUT: Mount Carmel, 1 ale. (M. C. Z.) ; New Haven, 1 ale. 

 (U.S.N.M.). 



DISTRICT OP COLUMBIA: Washington, 2 skins, 1 ale. (U.S.N.M.). 



GEORGIA: Young Harris, 1 skin (U.S.N.M.). 



ILLINOIS: Chieago, 1 ale. (U.S.N.M.) ; Wabash County, 1 ale. (U.S.N.M.). 



INDIANA: Mitchell, 4 skins (U.S.N.M.) ; Terre Haute, 1 ale. (U.S.N.M.) ; 

 Wheatland, 1 ale. (U.S.N.M.). 



KENTUCKY: Burchette's Cave, 2 ale. (M. C. Z.) ; Eubanks, 2 ale. 

 (U.S.N.M.). 



LAKE SUPERIOR: 3 ale. (M. C. Z.). 



MAINE: Eastport, 2 ale. (U.S.N.M.), 2 ale. (M. C. Z.) ; Norway, 1 ale. 

 (M. C. Z.) ; St. George, 1 skin (M. C. Z.). 



MARYLAND: Cabin John Bridge, 1 skin (U.S.N.M.); Muirkirk, 1 ale. 

 (U.S.N.M.) ; Plummer Island, 5 skins (U.S.N.M.). 



MASSACHUSETTS: Brookline, 1 ale. (M. C. Z.) ; Feltonville, 5 ale. 

 (M. C. Z.) ; Harvard, 1 skin (M. C. Z.) ; Shirley, 1 skin (M. C. Z.) ; 

 Springfield, 1 ale. (M. C. Z.) ; Ware, 1 ale. (M. C. Z.) ; Wilmington, 

 1 skin (U.S.N.M.). 



MICHIGAN: Boynes Falls (Charlevoix County), 1 ale. (U. M.) ; Chip- 

 pewa County, 2 ale. (U. M.) ; Detroit, 1 ale. (A. N. S. P.) ; Douglas 

 Lake (Cheboygan County), 1 skin (U. M.) ; Isle Royal, 3 skins (U. M.) ; 

 Macinac Island, 3 skins (B. M.) ; Porcupine Mountains (Ontonagon 

 County), 3 skins (U. M.) ; South Lyon (Oakland County), 1 ale. (U. M.). 



"Monogr. Bats North Amer. (1893), p. 81, Mar. 14, 1894. 



