In4 (4(iiir<(l Xotcx. 



(GENERAL NOTES. 



The Vespertilio concinnus of Harrison Allen. 



Through the kindness of Mr. Witmer Stone I have recently had the 

 opportunity to examine the bats on which Harrison Allen based the 

 name VexpertiUo ronrinnu.'i (Proc. Acad. Nat. Sci. Philadelphia, 1806, p. 

 280). The specimens, two in number, are in alcohol, and labeled "San 

 Salvador, Dr. J. Leidy." Though much faded in color they are clearly 

 referable to Myotis tiif/rira/iK (Maximilian), or at least to that form of the 

 species occuring in Columbia and southern Mexico. The name conriii- 

 nus is therefore a synonym of nigricans unless the bat to which it was 

 applied should eventually prove to be distinct from the true nig?'iran.s of 

 Brazil, specimens of which I have not seen. In that case it would be 

 tenable for the northern animal. — Gern'f S. Miller. Jr. 



The generic name Evotomys not invalidated by Anaptogonia. 



In a posthumous paper on the fauna of the Port Kennedy bone fissure 

 (Journ. Acad, Nat. Sci., Philadelphia, 2d Ser. NI, p. 201) Cope .substi- 

 tuted the name Audptogonia Cope 1871 based on a fossil Microtine rodent 

 for EvotiDiiys Coues 1874 originally applied to the Redbacked Mice. The 

 change was made on accoinit of the supposed generic identity of the 

 fossil and living animals. Through the courtesy of Mr. AVitmer Stone 

 I have recently had an opportunity to examine two specimens of Anap- 

 togonia from the collection of the Philadelphia Academy of Sciences. 

 This material shows that Aini}it()g()ni((, i\\\\\(>\_vj:\\ provided with rooted 

 molars, is in no way closely related to Erofonigs. The teeth are as large 

 as in Mirrotiix {Neofiber) alleni, and the enamel pattern is characterized by 

 acute angularity. The genus thus resembles the ^'Arviroln intermedium''^ 

 of Newton and the Dolinnys of Nehring. Therefore the name Epotomys 

 as applied to the Redbacked Mice is in no way invalidated by the i^re- 

 vious publication of Atiajifngo/ifd. — Gerrit S. Afillrr. Jr. 



Note on Micronycteris brachyotis (Dobson) and M. microtis Miller. 



In describing a bat from Cireytown, Nicaragua, under the name Afi- 

 cronyrterin iHirroti,s (Proc. Acad. Nat. Sci. Philadelphia, 1898, p. :!28), I 

 overlooked the fact that Dobson had previously (Proc. Zool. Soc London, 

 1878, p. 880) described a member of the same genus from Cayenne, 

 French (Juiana, as SrJiizoxtovm Irachyote, a name not cited in Ti-oues- 

 sart's 'Cataiogus.' The two animals are evidently much more distinct 

 from each other than the similarity of their specific names would at 

 first suggest. AfirmuyrU'riK brarhyotiK is, with the exception of Af. 

 behnii, one of the largest species of the genus (forearm 40 mm.), while 

 M. mirrotix is among the smalle.st (forearm )il). In .)/. hrttrliynlis the 



