24 BULLETIN 144, UNITED STATES NATIONAL MUSEUM 



possibly a synonym of M. nigricans; "Wagner's figure of the tragus, 

 howBA^er, does not show the form typical of this genus. 



Nitidus {Vespertilio) H. Allen, Proc. Acad. Nat. Sci. Philadelphia, 

 1862, p. 247. From the original description as well as from the 

 more detailed later account with figures (Bull. U. S. Nat. Mus., No. 

 43 (1893), p. 94, pi. 12, March 14, 1894), there is no doubt that this 

 name applies to the bat which had already been described as Ves- 

 pertilio calif ormicus by Audubon and Bachman. This fact Doctor 

 Allen himself partly recognized; but he regarded a new name as 

 desirable on account of the supposed impossibility of identifying 

 Vespertilio californicus with full certainty. His specimens were 

 from Monterey, Calif., and Fort Steilacoom, Wash., therefore in- 

 cluding representatives of two geographical races. Miller (1897), 

 the first reviser, selected Monterey as the type locality and 

 gave a new name (caurinus) to the dark northwestern form. For 

 reasons which appear to us to be insufficient Lyon and Osgood (Bull. 

 U. S. Nat. Mus., No. 62, p. 272, January 28, 1909) reversed the de- 

 cision of Miller by regarding one of the specimens from Fort 

 Steilacoom as the type. (On this subject see also H. W. Grinnell, 

 Univ. California Publ. Zool., vol. 17, p. 283, January 31, 1918.) 



Nubilus (Vespertilio) Wagner, Schreber's Siiugthiere, suppl., vol. 

 5, p. 752, 1855. This was described by Wagner from Natterer's speci- 

 mens, the same apparently that served Temminck for his description 

 of Vespertilio albescefis (not of Geoffroy). They were collected in 

 southern Brazil and with their f cheekteeth, slender tragus, and 

 wings from the base of the toes were evidently representatives of a 

 species of Myotis. Wagner describes the coloring thus : " Die Haare 

 sind am Grunde schwarzbraun, auf der Oberseite allmahlig in's russig 

 Kastanienbraun iibergehend, auf den Bauch mit gelbbraunlichen 

 Spitzen." The forearm was 1 inch 4 lines long or about 37 mm. 

 From this description it seems clear that Wagner's bat was, like Tem- 

 minck's albescens^ the M. ruber of Geoffroy, 1805. 



Obscurus {Vespertilio) H. Allen, Proc. Acad. Nat. Sci. Philadel- 

 phia, 1866, p. 281. As first shown by Goldman (Proc. Biol. Soc 

 Washington, vol. 27, p. 102, May 11, 1914), the type of this species, 

 from Lower California, proves to be the same as Vespertilio ymnan- 

 ensis H. Allen, 1864. 



Occultus {Myotis) Hollister, Proc. Biol. Soc. Washington, vol. 22, 

 p. 43, 1909. This name is applicable to a peculiar and imperfectly 

 known species inhabiting the southwestern United States and adjoin- 

 ing parts of Mexico. 



Oregonensis {Vespertilio) H. Allen, Monogr. Bats North America, 

 Smithsonian Misc. Coll., No. 165, p. 61, June, 1864. This was origi- 

 nally a manuscript name written by LeConte on the label of a speci- 



