THE FAMILIES AND GENERA OF. BATS. 201 



1841. Selysias Bonaparte, Iconografia della Fauna Italica, Introd., p. 3 

 (mystacbius) . 



1841. Capaccinius Bonaparte, Iconografia della Fauna Italica (capaceinii). 



1842. Trilatitus Gbay, Ann. and Mag. Nat. Hist., X, p. 258, December, 1842 

 (Jiasseltii, macellus=adversiis. and blepotis=il initipierus sp.). 



1849. Tralatitus Gervais, Diet. Univ. d'Hist Nat, XIII, p. 213. 



1856. Brachyotus Kolenati, Allgem. deutsch. Naturhist. Zeitung, Dresden, 



neue Folge, II, p. 131 (mystacinus, daubentonii, and dasyeneme. Not 



Brachyotus Gould, 1837. 

 1856. Isotus Kolenati, Allgem. deutsch. Naturhist. Zeitung, Dresden, neue 



Folge, II, p. 131 (nattereri and emarg hiatus). 



1866. Tralatitius Gray, Ann. and Mag. Nat. Hist., 3d ser., XVII, p. 90. 



1867. Pternopterus Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 

 p. 706 (subgenus of Vespertilio=Myotis, type, P. lobipes Peters=Fes- 

 pertilio muricola Hodgson). 



1870. Bxocharus Fitzinger, Sitzungsber. kais. Akad. Wissensch., Wien, 



Math.-Naturwissensch. Classe LXII, p. 75 (macroductylus, horsfieldii = 



adversus, and macrotarsus). Not iltrochura Kolenati, 1858. 

 1870. Aeorestes Fitzinger, Sitzungsber. kais. Akad. Wissensch., Wien, 



Math.-Naturwissensch. Classe LXII, p. 427 (villosissinius, albescens, 



and nigricans). 

 1870. Comustes Fitzinger, Sitzungsber. kais. Akad. Wissensch., Wien, 



Math.-Naturwissensch. Classe LXII, p. 565 (capaceinii, inegapodius, 



dasyeneme, and limnophilus). 

 1878. Vespertilio Dobson, Catal. Chiropt. Brit. Mus., p. 284. Not T'es- 



pertilio Linnaeus, 1758. 

 1894. Vespertilio H. Allen, Monogr. Bats N. Amer. (1893), p. 70, March 14, 



1894. 

 1897. Myotis Miller, Ann. and Mag. Nat. Hist., 6th ser., XX, p. 382, October, 



1897. 

 1897. Myotis Miller, North Amer. Fauna, No. 13, p. 55, October 16, 1897. 



Type-species. — Vespertilio myotis Bechstein. 



Geographic distribution. — Entire mainland of Eastern and Western 

 Hemispheres to limits of tree growth; also the Malay Archipelago, 

 New Guinea, Australia, and Samoa, and in America the Lesser 

 Antilles. 



Number of forms. — About eighty species of Myotis are now known, 

 making the genus one of the largest, as well as the most widely 

 distributed of the order. 



Characters. — Dental formula : 



-2 3.1.-234567.2-2 1-1 3-3 3-3 Q0 



123.1.-234567 * 3^3' ° T=T P?U 3^3' m S^ 38 " 



Upper incisors well developed, subequal, closely crowded, the 

 crowns higher than long, subterete ; the inner with a distinct posterior 

 secondary cusp, the outer with a well-developed concave surface 

 directed toward canine, from which it is separated by a space not 

 quite equal to diameter of both incisors together. Lower incisors with 

 crowns about equal in length, forming a continuous, strongly convex 

 row between canines, the first and second with rather narrow, trilobed 



