AMERICAN" BATS OF THE GENERA MYOTIS AND PIZONYX 105 



Remarks. — In color the typical race of Myotis keenii appears to be 

 not essentially different from M. evotis evotis and M. lucifugus 

 alascensis. The longer ears serve to distinguish it readily from the 

 coast race of M. liicifugus, and the smaller upper molars (crown 

 of m^ 1.30 by 1.75 mm. in type, 1.35 by 1.60, and 1.30 by 1.T5 mm., 

 respectively, in two topotypes) are diagnostic as compared with 

 the local form of M. evotis (crown of m^ usually about 1.45 to 1.50 

 by 1.95 to 2.00 mm.). 



MYOTIS KEENII SEPTENTRIONALIS (Trouessart) 



Vespertilio subulatus H. Allen, Monogr. Bats North Amer., Smithsonian Misc. 

 Coll., No. 165, p. 51, figs. 45-46, June, 1864 (not of Say, 1823, or LeConte, 

 1855).— DOBSON, Catal. Chiroptera Brit. Mus., p. 324, 1878.— True, Proc. 

 U. S. Nat. Mus., vol. 7 (1884), p. 603, 1885.— Milled, Proc. Boston Soc. Nat. 

 Hist., vol. 28, p. 39, April, 1897. 



Vespertilio gryphus lucifugus Evebmann and Butleb. Proc. Indiana Acad. Sci., 

 1893, p. 134, 1894. 



Northern form of Vespertilio gryphus H. Allen, Monogr. Bats North Amer., 

 Bull. U. S. Nat. Mus., No. 43 (1893), p. 80, March 14, 1894. 



Vespertilio gryphus var. septentrionalis Trottessabt, Catal. Mamm. viv. foss., 

 p. 131, 1897. 



Vespertilio gryphus septentrionalis Milleb and Rehn, Proc. Boston Soc. Nat. 

 Hist., vol. 30, p. 308, December 27, 1901. 



Myotis subulatus Miller, North Amer. Fauna, No. 13, p. 75, figs. 13a, 15&, 

 October 16, 1897 (not of Say, 1823). — Troxtessabt, Catal. Mamm. viv. foss., 

 p. 1284, 1899. — MnxEE, Prelim. List New York Mamm., Bull. New York 

 State Mus., vol. 6, No. 29 (October, 1869), p. 366, November 18, 1899; Key 

 Land Mamm. Northeastern North Amer., Bull. New York State Mus., vol. 8, 

 No. 38 (October, 1900), p. 149, November 21, 1900. — Elliot, Synops. Mamm. 

 North Amer., Field Columb. Mus., publ. 45. zool. ser., vol. 2, p. 40.5, March 

 1901; List Land and Sea Mamm. North Amer., Field Columb. Mus., publ. 

 57, zool. ser., vol. 2, p. 518, June, 1901. — Miller and Rehn, Proc. Boston 

 Soc. Nat. Hist., vol. 30, p. 257, December 27, 1901. — Elliot, Land and Sea 

 Mamm. Middle Amer., Field Columb. Mus., publ. 95, zool. ser., vol. 4, p. 

 580, 1904. — Trouessabt, Catal. Mamm. viv. foss., suppl., p. 93, 1904. — Elijot, 

 Check List Mamm. North Amer., Field Columb. Mus., publ. 105, zool. ser., 

 vol. 6, p. 478, 1905 ; Catal. Mamm. Field Columb. Mus., Field Columb. Mus., 

 publ. 115, zool. ser., vol. 8, p. 504, 1907. — G. M. Allen, Bull. Mus. Comp. 

 Zool., vol. 52, p. 45, July, 1908.— Hahn, The Mamm. of Indiana, .33d Ann. 

 Rep. Dept. Geol. and Nat. Resources of Indiana, 1908, p. 623, 1909.— Cory, 

 Mamm. Illinois and Wisconsin, Field Mus. Nat. Hist., publ. 153, zool. ser., 

 vol. 11, p. 460, 1912.— BAILEY, Proc. Biol. Soc. Washington, vol. 36, p. 137, 

 March 28, 1923. 



Myotis subulatus subulatus Miller, List North Amer. Land Mamm. 1911, Bull. 

 U. S. Nat. Mus., No. 79, p. 58, December 31, 1912 ; List North Amer. Recent 

 Mamm. 1923, Bull. U. S. Nat. Mus., No. 128, p. 72, April 29, 1924.— Bailey, 

 North Amer. Fauna, No. 49 [December, 1926], p. 216, January 8, 1927 

 (North Dakota). 



Type loccdity. — Halifax, Nova Scotia. 



58518—28 8 



