6. TESPERUGO. 



193 



Vespertilio phaiops, Rqfinesque, Amer. Month. Mag. 1817, p. 445 ; 



Wagner, Suppl. Schr. Sdugeth. v. p. 756 ; Leconte, Proc. Acad. N, 



Set. 1855, p. 437. 

 Eptesicus melanops, Rafinesqite, Ann. of Nature, 1820, p. 2. 

 Vespertilio ursinus, Temminck, I. o. p. 235 ; Wagner, Suppl. Schreh. 



Saugeth. v. p. 756 (1855). 

 Scotophilua cubensis, Ch-ay, Ann. Nat. Hist. 1839, iv. p. 7. 

 Vespertilio dutertrseus, Gervais, in Ramon de la Sagra, Hist, de Hie 



de Cuba, Mammif. p. 6, Atlas, t. ii. (1840) ; Peters, MB. Akad. 



Berl. 1801, p. 151. 

 Scotophilus MacLeayii, Gray, List Mammal. Brit. Museum, 1843, 



p. 30. 

 ScotophOus ursinus, Tomes, P. Z. S. 1801, p. 278. 

 Scotophilus carolinensis et fuscus, Allen, Monogr. Rats N. America, 



pp. 28-32 (1864). 

 Scotophilus fuscus, J. A. Allen, Bullet. Mus. Comp. Anat. PMlad. 



No. 8, p. 208 (1869). - 



This variety of V. serotinus from the New World has hitherto 

 been distinguished as a distinct species under the name of V. fuscus. 

 It differs from European specimens of the Serotine, and from those 

 from Central America, in being smaller, the forearm apparently never 

 exceeding l"-8 and the foot 0"-4 ; also in the somewhat deeper 

 emargination in the upper half of the outer margin of the ear. 



My discovery of specimens of the Serotine (perfectly indistin- 

 guishable from European examples) am^ong a collection made by 

 Mr. Salvin in Guatemala, while interesting as the first recognition 

 of an Old- World species of Bat in America, led me to examine more 

 closely the specimens of V. fuscus preserved in the different museums ; 

 and I am satifled that, at most, they can be considered to represent a 

 variety only of the Serotine. The following Table exhibits measure- 

 ments of ftiU-grown examples of this variety from different locali- 

 ties : — 



Ilab. The Palsearctie, Ethiopian, Oriental, Nearctic, and Neotropical 

 Kegions. In the Paltearctic Region generally distributed from Southern 



