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NORTH AMERICAN FAUNA. 



tiJio: serotinus, discolor, iiUssoiu\ savii, Jeuclppc^aristippe^ nocttila, leisJeri^ 

 I'uhlii, albolimbattiSy uatkHsli, imdjninstrellus. The first six were placed 

 in tlie new snbgenus Vesperus, the otliers in the subgenus Yesperuf/o. 

 Hence the type must be a member of the second group. This grou[), 

 however, contains two modern genera, the first represented by the spe 

 cies noctuJa and leislcri, the second by l-uhlii, 'alboUmhatns^ i = ]{uhUi^ 

 fiilc Dobson), 'natht(sii^ [=ahramus, fide Dobson), and pipistrellus. 

 These had ah^eady been named Fterygistes and Pipistrellus, respectively, 

 by Kaup in 18U9. Hence Vesperugo is untenable in any connection. 



Vesperus Keyserling and Blasius, 1839 (Wiegmann's Archiv f. Natur- 

 gesch., 5ter Jahrgang, Bd. I, p. 313), proposed as a subgenus of Fc'.s- 

 jjcrngoHo include the species serotinus, discolor, nilssoni, savii, lencippe, 

 and aristippe, is antedated by Cnepluvus Kaup, 1829, Eptesicus Rafines- 

 que, 1820, and Yespertilio Linni^us, 1 758. It is moreover preoccupied in 

 Entomology by Vesperus Latreille, 1829. 



2. Specific and Subspecific Names. 



Affinis (Vespertilio). H. Allen, Monogr. Bats X. Am., p. 53, 1864. 

 The type of Dr. Harrison Allen's Yespertilio affinis, now in the United 

 States National Museum, proves to be a typical example of Myotis 

 luei/ufjus. It is therefore in no way related to the Yespertilio nitidus 

 or Y. albescens of Dr. Allen's second monograph. 



Albescens (Vespertilio). E. Geoft'roy, Ann. Mns. d'Hist. Nat., Paris, 

 VIII, p. 201, 1806. This is a South American species of Myotis, proba- 

 bly closely related to J/, velifer (J. A. Allen). The measurements given 

 by Azara and quoted in the original descri])tion are: Total length, 80 

 mm.; tail, 33; extent of Avings, 235; ear, 14. The name albescens has 

 been used by Dr. Harrison Allen for j\lyotis yumanensis, M. evotis, M. 

 californicus {^Yespertilio albescens melanorhinus'), M. relifer, M. thysa- 

 nodes {iimlev 3/. reli/er),imil i)/. lucifugus {' yespertilio albescens affinis^), 

 which he unites as subspecies. 



Albigularis (Vesperus). Peters, Monatsber. K. Preuss. Akad. Wiss., 

 Berlin, p. 200, 1872. Yespertilio albigularis (Peters) is the type of the 

 subgenus Ma.rsipolicmus. The characters given in the original descrip- 

 tion indicate a well marked species, with which, however, I am Avholly 

 unacquainted. The type was collected in Mexico. 



Alleni (Rhogeessa). Thomas, Ann. & Mag. Nat. Hist., 0th ser., X, 

 p. 177, 1892. This is tlie only name for this species. 



Americana (Atalapha). Katinesque, Precis des Decouv. Somiologiques, 

 p. 12, 1814. This is a synonym of Lasiurus borealis (Miiller), though 

 properl}^ si^eakiug the name is a iiomen nudum (see p. 100). 



Arquatus (Vespertilio). Say, Long's Expedition to the Pocky Moun- 

 tains, I, p. 107, footnote, 1823. The description clearly indicates Yes- 

 pertilio fuseus Beauvois. 



Auduboni (Vespertilio). Harlan, Feather ston eh augh's Monthly Ameri- 

 can Journal of Geology and Natural History, I, p. 220, PI. II, November, 

 1831. Both description and jjlate indicate the silver-haired bat. 



