1902.] NATURAL SCIENCES OF PHILADELPHIA. 161 



genus Aello, which Leach described from a mutilated specimen of 

 Mormoops blainvillii, according to Dobson/ who examined the type. 

 While the genus and species Aello cuvieri have page priority oyer 

 Mormoops blainvillii, the very poor definition and absolute uniden- 

 tifiability of the former (Avithout a close examination of the type such 

 as Dobson has made) should give occasion to use the belter defined, 

 almost simultaneous and universally recognized name. Gray/ in 

 speaking of the occurrence of the genus in Cuba, placed Mormoops 

 and the genus Chilonyderis in the tribe Nodilionina in the vicinity 

 of the Taphozoi, on accoimt of the possession of no true nose leaf. 

 In 1840, Gimdlach^ described a specimen of this genus from Cuba 

 as Lobostoma einnamomeum, and Peters^ and Saussure'' both con- 

 fused Leach's species with another form of the genus to which 

 Petei*s later" gave the name of megalophylla. Saussure, in the 

 above-mentioned paper, placed the genus in a subtribe of the 

 ' ' Xoctilioniens, ' ' which he designates as the * ' Mormopsins, ' ' and 

 associates Chilonyderis with it in the same division. In 1865, 

 Peters,® in a revisionary table of the order, placed Mormops (^Mor- 

 moops Leach), Chilonyderis and Pteronotus in a subfamily 3Ior- 

 mopes of the family Phyllostomata. Dobson' considered these allied 

 genera as constituting a subfamily Lobostomince and group 3Ior- 

 m^pes of the Phyllostojnatidce. Quite recently Miller^" has de- 

 scribed a form allied to J/, megalophylla, inhabiting the island of 

 Cura9ao, as Mormoops intermedia. 



General Relations. — The three genera, Mormoops, Chilonyderu 

 and Dermonotus (Pteronotus Auct."), comprise a well-defined sub- 

 family, the differential characters of which are the absence of a dis- 

 tinct nose leaf and the presence of leaf-like appendages on the 

 lower lip. The former character is shared by the genus Centurio, 

 but the latter chai-acter easily distinguishes the group from the 

 Centurionince. The genus Mormoops may be distinguished from 



^ Catal. Chiropt. Brit. Mus., p. 454. 



'^Ann. Nat. Hist., IV, p. 3, 1839. 



* Wiegmann's ^rc/i. /. Naturgesch., VI, bd. I, p. 3.57. 



'" Monatsber. k. 7)rf7z««. Akad. Wissensch., Berlin, 18o6, pp. 410-415. 

 Abhandl. k. preuss. Akad. Wissensch., Berlin, 1856, i>p. 28T-3U1. 



^ lie cue et Marjasiii de Zoologie, 2d ser., XII, pp. 290-293. 



"< Monat.sber. k. preuss. Akad. Wissensch., Berlin, 1864, p. 381. 



^ Monatsber. k. preuss. Akad. Wissensch., Berlin, 1865, p. 257. 



» Catal. Chiropt. Brit. Mus., pp. 44G-447. 

 '0 Proc. Biol. Soc. WasJdngton, XIII, p. 160. 

 ^' Vide Gill, Proc. Biol. Soc. Washington, XIV, p. 177. 



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