172 BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 



Geographic distribution. — Bahama Islands and Greater Antilles. 



Characters.— Teeth highly abnormal. Upper molars with low, in- 

 distinct paracone and metacone at extreme outer edge of crown. Pro- 

 tocone low or obsolete, situated at extreme inner margin. Interme- 

 diate region occupied by a wide, shallow gropve, angled at middle. 

 Lower molars very long and narrow, their cusps too indistinct to be 

 positively identified ; m 1? and usually m 2 and m 3 also, with distinct 

 median longitudinal groove, their structure almost exactly similar to 

 that in the Kiodotinse. Noseleaf small or rudimentary. Rostrum 

 and tongue Elongated, the tongue armed with lengthened, bristle-like 

 papillae. 



History. — Since the genus Phyllonycteris was discovered this group 

 has not been distinguished from the Glossophaginse except by Har- 

 rison Allen. He associated it with Brachyphylla to form a section, 

 Brachyphyllina or " Glossophagina aberrantia," of the Glossopha- 

 ginEe. That it should be separated from the Glossophagine bats there 

 can be no doubt, but of its near relationship to Brachyphylla I can 

 detect no indication. The Phyllonycterinse may be an offshoot from 

 some Hemidermine stock, as the teeth in one genus show such a 

 resemblance to those of Rhinophylla that it may perhaps indicate 

 more than a fortuitous likeness. 



Principal subdivisions. — Three genera are represented among the 

 species of Phyllonycterinse thus far known. 



KEY TO THE GENERA PHYIXONYCTEBIN^. 



Base of brain case between pterygoids with deep, conspicuous, longitudinal 



groove Reithronycteris, p. 174. 



Base of brain case between pterygoids flat with slightly developed median 

 longitudinal ridge. 



Second and third lower molars without cusps ; calcar absent ; inter- 

 femoral membrane extending to middle of tibia only. 



Phyllonycteris, p. 172. 

 Second and third lower molars with two low but distinct cusps each ; 

 calcar present ; interfemoral membrane extending to calcar. 



Erophylla, p. 17.1. 



Genus PHYLLONYCTERIS Gundlach. 



1865. Phyllonycteris Gundlach, Monatsber. k. preuss. Akad. Wissensch., 



Berlin, p. 817 (part). 

 1878. Phyllonycteris Dobson, Catal. Chiropt. Brit. Mus., p. 501 (part). 



Type-species. — Phyllonycteris poei/i Gundlach. 

 Geographic distribution. — Cuba. 

 Number of forms. — The type species only. 

 Characters. — Dental formula (Plates III, IV, fig. 4) : 



-23.1.--34567 .2-2 1-1 2-2 3-3 00 



12-.1.-2-4567 * 2^2' c l^l' P m 2^2' m 3^3 = 32- . 



