380 Mr. G. S. Miller, Jr., on the 
species are mentioned, No. 18 of the first edition (here num- 
bered 2) and the long-eared bat, “V. caudatus, naso oreque 
simplict, auriculis duplicatis, capite majoribus” (pp. 1-2, 
1761). These had already received binomial names, Vesper- 
tilio murinus and V. auritus respectively, in the tenth edition 
of the ‘Systema Nature,’ where the following diagnosis of 
V. murinus is given: “V. caudatus, naso oreque simplic?, 
auriculis capite minoribus” (p. 32, 1758). In the second 
edition of the ‘ Fauna Suecica’ the teeth of V. murinus are 
thus described *:—‘‘ Dentes primores superiores 6, acuti 
distantes ; inferiores 4, acuti contigui. Laniarii superiores 2, 
anteriore majore ; inferiores 3, antico maximo. Molares 
utrinque 3, tricuspidati.” 
It thus appears that the Vespertilio murtnus of Linnezus, 
the type of the genus Vespertdlio, is a common Scandinavian 
bat with ears shorter than the head, and with the dental 
formula ¢ $3}, ¢ is, pm gas, mM = 82. 
The only known Scandinavian bats which combine these 
characters are the members of the group commonly known 
as Vesperus in Europe and Adelonycteris in America, but to 
which Mr. Oldfield Thomas has recently applied the name 
Eptesicus, Rafinesque}. Therefore the genus Vespertilio 
with its principal synonymy stands as follows :— 
VESPERTILIO, Linneus, 1758. 
1758. Vespertilio, Linnzeus, Systema Nature, i. ed. x. pp. 31-32. Type 
by elimination Vespertilio murinus, Linneeus (not V. marinus, 
Schreber, 1775). 
1820. Eptesicus, Rafinesque, Annals of Nature, p. 2. Type Eptesicus 
melanops, Rafinesque,= Vespertilio fuscus, Beauyois. 
1829. Cnepheus, Kaup, Skizzirte Entw.-Gesch. u. natiirl. Syst. der 
europ. Thierw. Ister Theil, p. 103. Type Vespertilio serotinus, 
Schreber. 
1839, Vesperugo, Keyserling & Blasius, Wiegmann’s Archiy fiir Natur- 
geschichte, v. Bd. 1. p. 312 (part.). 
1839. Vesperus, Keyserling & Blasius, Wiegmann’s Archiv fiir Natur- 
geschichte, v. Bd. i. p. 315. Based on the 32-toothed species of 
“ Vesperugo.” 
1841, Noctula, Bonaparte, Iconografia Fauna Italica, i. fase. xxi. 
(under Vespertilio alcythoe). Type Vespertilio serotinus. 
1856. Cateorus, Kolenati, Allgem. deutsch. naturhist. Zeitg. Dresden, 
neue Folge, ii. pp. 151, 162-163. Type “ Vesperugo”’ serotinus. 
1856. Meteorus, Kolenati, Allzem. deutsch. naturhist. Zeitg. Dresden, 
* Tn the first edition the dental formula is the same, except that the 
lower incisors are said to be five in number, an error corrected in the 
second edition. 
+ In Linneus's statement the figures 4 and 6 are evidently transposed. 
{ Proce. Zool. Soc. Lond. 1896, pt. iv. p. 791, April 1, 1897. 
